Y2 2018_How temperature changes matter
•Download as PPT, PDF•
1 like•786 views
Melting involves changing a solid into a liquid state using heat. Boiling changes a liquid into a gas (water vapor) when heat is applied, while freezing is the reverse process of changing liquid to solid with cooling. Condensation occurs when a gas hits a cold surface and changes back to a liquid state. These changes of state between solid, liquid, and gas are known as melting, freezing, boiling, evaporation, and condensation.
Report
Share
Report
Share
Recommended
How temperature changes matter
The document discusses four state changes of matter: melting changes solids to liquids, evaporation changes liquids to gases, freezing changes liquids to solids, and condensation changes gases back to liquids when they contact a cold surface.
3 ppt changes in state
Water can exist in three states of matter: as a solid (ice), a liquid (water), or a gas (water vapor). Ice melts into water and water evaporates into vapor through boiling or evaporation; vapor condenses back into liquid water through condensation and liquid water freezes back into solid ice. The document provides examples of the three states of water and the phase changes between each state.
Physical Science
Water is the most abundant compound on Earth, covering 70% of the planet. It exists in liquid, solid, and gas states and is in dynamic equilibrium between liquid and gas. Water is tasteless, odorless, and nearly colorless. It dissolves many substances, making it the universal solvent. Water has important uses in daily life like drinking, washing, bathing, and cooking. It has unique properties like existing as a solid, liquid, and gas and expanding when freezing unlike most liquids. The freezing point of water is 0°C/32°F, the melting point is when ice changes to liquid water, and the boiling point is 100°C when water turns to a gas.
Solids and liquids grade 4
This document discusses different states of matter and properties. It defines mass and explains that both air and water have mass, though air is less dense. It describes the physical states of matter as solid, liquid or gas. Freezing and melting are defined as reversible changes between solids and liquids that involve temperature changes at specific freezing and melting points. Irreversible changes like burning cannot be reversed. Mixtures can be separated using sieves, strainers or filtration, while dissolving solids in liquids forms solutions from which the solids cannot later be separated by filtration.
2008 Phase Changes
The document defines the five types of phase changes: melting, freezing, vaporization, condensation, and sublimation. Melting is the phase change from solid to liquid, freezing is from liquid to solid. Vaporization changes a liquid to a gas, while condensation goes from gas to liquid. Sublimation uniquely changes a solid directly to a gas. Physical changes like these alter a substance's state but not its chemical makeup.
Density & temp
This document discusses how density and temperature are related. It explains that:
1) The density of a substance does not change if the temperature remains constant, as the number of particles in a given volume stays the same.
2) When energy is added and particles move faster, increasing the volume while keeping the particle number the same, the density decreases as temperature increases.
3) Therefore, the density of most substances decreases as the temperature increases.
How water changes
The document discusses the three forms that water can take - liquid, solid, and gas - and provides examples of each. It explains that water can evaporate when heated, turning from a liquid to a gas, and can condense when cooled, turning back from a gas to a liquid. The freezing and melting points of water are also stated.
Chloe
The document describes the three states of matter - solid, liquid, and gas. Solids have a definite shape and volume, and are hard to break. Liquids have a definite volume but take the shape of their container. Gases have no definite shape or volume and their particles are far apart. Matter can change between these three states, with solids melting into liquids, liquids evaporating into gases, and gases condensing into liquids.
Recommended
How temperature changes matter
The document discusses four state changes of matter: melting changes solids to liquids, evaporation changes liquids to gases, freezing changes liquids to solids, and condensation changes gases back to liquids when they contact a cold surface.
3 ppt changes in state
Water can exist in three states of matter: as a solid (ice), a liquid (water), or a gas (water vapor). Ice melts into water and water evaporates into vapor through boiling or evaporation; vapor condenses back into liquid water through condensation and liquid water freezes back into solid ice. The document provides examples of the three states of water and the phase changes between each state.
Physical Science
Water is the most abundant compound on Earth, covering 70% of the planet. It exists in liquid, solid, and gas states and is in dynamic equilibrium between liquid and gas. Water is tasteless, odorless, and nearly colorless. It dissolves many substances, making it the universal solvent. Water has important uses in daily life like drinking, washing, bathing, and cooking. It has unique properties like existing as a solid, liquid, and gas and expanding when freezing unlike most liquids. The freezing point of water is 0°C/32°F, the melting point is when ice changes to liquid water, and the boiling point is 100°C when water turns to a gas.
Solids and liquids grade 4
This document discusses different states of matter and properties. It defines mass and explains that both air and water have mass, though air is less dense. It describes the physical states of matter as solid, liquid or gas. Freezing and melting are defined as reversible changes between solids and liquids that involve temperature changes at specific freezing and melting points. Irreversible changes like burning cannot be reversed. Mixtures can be separated using sieves, strainers or filtration, while dissolving solids in liquids forms solutions from which the solids cannot later be separated by filtration.
2008 Phase Changes
The document defines the five types of phase changes: melting, freezing, vaporization, condensation, and sublimation. Melting is the phase change from solid to liquid, freezing is from liquid to solid. Vaporization changes a liquid to a gas, while condensation goes from gas to liquid. Sublimation uniquely changes a solid directly to a gas. Physical changes like these alter a substance's state but not its chemical makeup.
Density & temp
This document discusses how density and temperature are related. It explains that:
1) The density of a substance does not change if the temperature remains constant, as the number of particles in a given volume stays the same.
2) When energy is added and particles move faster, increasing the volume while keeping the particle number the same, the density decreases as temperature increases.
3) Therefore, the density of most substances decreases as the temperature increases.
How water changes
The document discusses the three forms that water can take - liquid, solid, and gas - and provides examples of each. It explains that water can evaporate when heated, turning from a liquid to a gas, and can condense when cooled, turning back from a gas to a liquid. The freezing and melting points of water are also stated.
Chloe
The document describes the three states of matter - solid, liquid, and gas. Solids have a definite shape and volume, and are hard to break. Liquids have a definite volume but take the shape of their container. Gases have no definite shape or volume and their particles are far apart. Matter can change between these three states, with solids melting into liquids, liquids evaporating into gases, and gases condensing into liquids.
Density Anomaly
This document discusses buoyancy, density, and why ice floats. It explains that ice is less dense than water due to the formation of hydrogen bonds between water molecules that cause water to expand when it freezes. As a result, the buoyant force on ice is greater than its weight, causing ice to float on water.
Solid liquid and gases class 4 cbse_deepa unnikrishnan
This document discusses the three states of matter - solids, liquids, and gases. It explains that in solids, particles are packed closely together, in liquids they are less closely packed, and in gases they are very loosely packed. It describes how matter can change states through melting, evaporation, condensation, and solidification. It also defines solutions as formed when substances mix evenly, with the substance present in lower amount called the solute and the substance it dissolves in called the solvent. Finally, it discusses different methods of separating substances including sedimentation and decantation, filtration, and evaporation.
Science primary 4: Changing State of Water
Water exists in three states - solid, liquid, and gas - and can change between these states when it gains or loses heat. It freezes into ice at 0°C when it loses heat, melts back into liquid water when it gains heat above 0°C. Water boils into steam at 100°C when sufficient heat is added, and condenses back to a liquid when steam cools below 100°C losing heat. The rate of evaporation depends on factors like wind, temperature difference, and surface area.
Condensation 4
Condensation occurs when water vapor in the air cools and turns back into liquid water droplets. Water evaporates from surfaces and enters the air as a gas, then floats up into clouds where the gas condenses back into liquid as the clouds become heavy with water, eventually falling as rain in a continuous cycle. The three states of matter - solid, liquid, and gas - are also explained, with solids being hard, liquids being runny, and gas being able to float like air.
Viscosity
Viscosity is a measure of how quickly a fluid flows, determined by internal friction between particles. Fluids with greater friction between particles, like molasses or ketchup, have higher viscosity and flow more slowly than those with less friction, like water or juice. The ramp test can compare viscosities by timing how long it takes fluids to flow down a ramp, and viscosity can be investigated by testing fluids at different temperatures - viscosity decreases as temperature increases because particles slide and roll more easily with added energy.
Unit a mix & flow of matter
1. Fluids are substances that have no fixed shape and can flow, including liquids and gases. Fluids are found in many technologies and natural processes.
2. Fluids help with transporting materials like oil sands in slurries, processing materials like melting sand into glass, and holding other materials like ingredients in toothpaste.
3. Fluid properties like viscosity, density, and compressibility determine how fluids behave and can be used. Understanding these properties allows for developing new fluid technologies.
Shreya
The three states of matter are solids, liquids, and gases. Solids have a defined shape and volume, while liquids conform to the shape of their container but have a definite volume. Gases spread out evenly to fill their container. Water is unique in that it can exist as a solid, liquid, or gas, taking the form of ice, water, or water vapor respectively. The addition of energy, usually in the form of heat, allows matter to change states from solid to liquid to gas.
Classifying matter
Matter is anything that has mass and takes up space. There are two types of matter: pure substances and mixtures. Pure substances are made of only one type of matter and have unique properties, while mixtures are combinations of two or more substances that can be separated, including mechanical mixtures, solutions, suspensions, and colloids.
Water density
The document discusses how the density of substances can change with temperature. It notes that most substances contract and become more dense when cooled, while expanding and becoming less dense when heated. An exception is water, which is more dense in its liquid form than as a solid (ice), allowing ice to float. This unique property allows plants and animals to survive winter freezing. The document also discusses how salt water is denser than fresh water.
Three States Of Matter
This document summarizes the three states of matter - solids, liquids, and gases. It defines each state and provides examples. Solids have a definite size and shape, liquids take the shape of their container, and gases have no definite shape and fill their container. Examples of each state are given, such as table salt for solids, juice for liquids, and air for gases. Properties of matter like color, shape, and texture are also briefly discussed.
2js13
This document discusses colligative properties of solutions and how they affect a liquid's boiling point and freezing point. It defines key terms like colligative properties, boiling point elevation, and freezing point depression. It explains that adding a solute lowers the freezing point of water by allowing it to melt at a lower temperature, called freezing point depression. Adding salt also increases the boiling point of water, called boiling point elevation. These colligative properties depend only on the concentration of solute particles rather than the identity of the solute. The document also briefly mentions emulsions, emulsifiers, surfactants, soaps, and detergents but does not provide details.
Where does Soil come from?
Soil is formed over long periods of time from the breakdown of rocks and dead plants and animals into smaller particles. These particles are decomposed by organisms into nutrients that make up soil. Soil texture and composition can vary depending on the size of particles, which range from very small clay to larger sand, with silt and loam mixtures draining water at different rates.
What is sound
Sound is important because it tells us things, helps us stay safe, and can help us wake up. Sound is caused by vibration, which is the movement back and forth. Sounds can have different volumes, being either loud or soft, and different pitches, being either high or low. The document discusses what sound is, why it is important, how vibration causes it, and that sounds can have different volumes and pitches.
Rocks 2018
Rocks are a non-living natural resource that come in different sizes, shapes, and colors and have been used as tools for thousands of years. Some examples of rocks and their uses include chalk for making chalk, marble for making statues, slate for making roof tiles, limestone for making cement, and granite for making kitchen tables. Other rocks like graphite are used for pencils, magnetite for magnets, fluorite for toothpaste, and turquoise for jewelry.
How does earth's motion cause day and night?
The Earth's rotation on its axis causes day and night. As the Earth spins, one side constantly faces the sun and experiences day while the other side faces away from the sun and experiences night. This rotation takes place every 24 hours, with each rotation constituting a full day and night cycle. The apparent movement of the sun and moon is actually due to the Earth's rotation, not their movement.
What can change how things move?
Force is the power that helps us move things. There are two types of forces: push forces and pull forces. Push forces move objects away while pull forces move objects towards the thing applying the force.
How do you describe motion?
Motion is defined as a change in an object's place or position. There are three main types of motion: straight motion where an object moves in a straight line, circular motion where an object moves in a circular path, and zigzag motion where an object moves back and forth in an irregular pattern. Examples are given for each type of motion including marching ants and soldiers, fan blades and clock hands, and rollercoasters.
How can you measure weather?
The document describes the 4 seasons and different types of weather. It notes that winter is cold so dark heavy clothes are worn, spring is warm as flowers bloom, summer is hot so light clothes and beaches are common, and autumn is cool as leaves fall from trees. Different weather phenomena are also outlined such as wind, rain, snow, sleet, hail, and how weather is measured with tools.
Electricity
Electricity is important in powering many devices in homes and making them more convenient. It comes from power plants and is delivered to homes through outlets. Without electricity, many modern conveniences like lights, appliances, and electronics would not function. Electricity can power devices directly from outlets or through batteries and can be converted into different forms of energy like heat, light, sound, and motion to operate machines. Proper safety rules must be followed when using electricity.
Y2_Electricity
Electricity is important in our lives and powers many devices in our homes. If the electricity went out this morning, it would be difficult to function without devices like lights, appliances, and electronics. Electricity comes from power plants and is delivered to homes through wires, where it can power devices plugged into outlets on walls or run on batteries. Electricity can be converted into different forms of energy like heat, light, sound, and motion to power various machines and devices. Proper safety around electricity is important.
Y2_How temperature affect matter?
Melting involves changing a solid into a liquid state using heat. Boiling changes a liquid into a gas (water vapor) with heat, while freezing is the reverse process of changing liquid to solid with cooling. Condensation occurs when a gas changes to a liquid state by contacting a cold surface, such as water vapor condensing to liquid water on the outside of a cold drink. These changes of state between solid, liquid, and gas are caused by the addition or removal of heat from the substance.
W4 (21 1 24-1) plant parts
The document discusses plant parts and how plants grow. It lists the main plant parts as roots, stem, leaves, and flowers. Roots take in water and nutrients from the soil, the stem holds up the plant and transports water and nutrients, leaves produce food for the plant through photosynthesis, and flowers are involved in reproduction. It then outlines the basic stages of plant growth, starting from a seed where a root emerges followed by a stem and leaves as the whole plant develops.
More Related Content
What's hot
Density Anomaly
This document discusses buoyancy, density, and why ice floats. It explains that ice is less dense than water due to the formation of hydrogen bonds between water molecules that cause water to expand when it freezes. As a result, the buoyant force on ice is greater than its weight, causing ice to float on water.
Solid liquid and gases class 4 cbse_deepa unnikrishnan
This document discusses the three states of matter - solids, liquids, and gases. It explains that in solids, particles are packed closely together, in liquids they are less closely packed, and in gases they are very loosely packed. It describes how matter can change states through melting, evaporation, condensation, and solidification. It also defines solutions as formed when substances mix evenly, with the substance present in lower amount called the solute and the substance it dissolves in called the solvent. Finally, it discusses different methods of separating substances including sedimentation and decantation, filtration, and evaporation.
Science primary 4: Changing State of Water
Water exists in three states - solid, liquid, and gas - and can change between these states when it gains or loses heat. It freezes into ice at 0°C when it loses heat, melts back into liquid water when it gains heat above 0°C. Water boils into steam at 100°C when sufficient heat is added, and condenses back to a liquid when steam cools below 100°C losing heat. The rate of evaporation depends on factors like wind, temperature difference, and surface area.
Condensation 4
Condensation occurs when water vapor in the air cools and turns back into liquid water droplets. Water evaporates from surfaces and enters the air as a gas, then floats up into clouds where the gas condenses back into liquid as the clouds become heavy with water, eventually falling as rain in a continuous cycle. The three states of matter - solid, liquid, and gas - are also explained, with solids being hard, liquids being runny, and gas being able to float like air.
Viscosity
Viscosity is a measure of how quickly a fluid flows, determined by internal friction between particles. Fluids with greater friction between particles, like molasses or ketchup, have higher viscosity and flow more slowly than those with less friction, like water or juice. The ramp test can compare viscosities by timing how long it takes fluids to flow down a ramp, and viscosity can be investigated by testing fluids at different temperatures - viscosity decreases as temperature increases because particles slide and roll more easily with added energy.
Unit a mix & flow of matter
1. Fluids are substances that have no fixed shape and can flow, including liquids and gases. Fluids are found in many technologies and natural processes.
2. Fluids help with transporting materials like oil sands in slurries, processing materials like melting sand into glass, and holding other materials like ingredients in toothpaste.
3. Fluid properties like viscosity, density, and compressibility determine how fluids behave and can be used. Understanding these properties allows for developing new fluid technologies.
Shreya
The three states of matter are solids, liquids, and gases. Solids have a defined shape and volume, while liquids conform to the shape of their container but have a definite volume. Gases spread out evenly to fill their container. Water is unique in that it can exist as a solid, liquid, or gas, taking the form of ice, water, or water vapor respectively. The addition of energy, usually in the form of heat, allows matter to change states from solid to liquid to gas.
Classifying matter
Matter is anything that has mass and takes up space. There are two types of matter: pure substances and mixtures. Pure substances are made of only one type of matter and have unique properties, while mixtures are combinations of two or more substances that can be separated, including mechanical mixtures, solutions, suspensions, and colloids.
Water density
The document discusses how the density of substances can change with temperature. It notes that most substances contract and become more dense when cooled, while expanding and becoming less dense when heated. An exception is water, which is more dense in its liquid form than as a solid (ice), allowing ice to float. This unique property allows plants and animals to survive winter freezing. The document also discusses how salt water is denser than fresh water.
Three States Of Matter
This document summarizes the three states of matter - solids, liquids, and gases. It defines each state and provides examples. Solids have a definite size and shape, liquids take the shape of their container, and gases have no definite shape and fill their container. Examples of each state are given, such as table salt for solids, juice for liquids, and air for gases. Properties of matter like color, shape, and texture are also briefly discussed.
2js13
This document discusses colligative properties of solutions and how they affect a liquid's boiling point and freezing point. It defines key terms like colligative properties, boiling point elevation, and freezing point depression. It explains that adding a solute lowers the freezing point of water by allowing it to melt at a lower temperature, called freezing point depression. Adding salt also increases the boiling point of water, called boiling point elevation. These colligative properties depend only on the concentration of solute particles rather than the identity of the solute. The document also briefly mentions emulsions, emulsifiers, surfactants, soaps, and detergents but does not provide details.
What's hot (11)
Solid liquid and gases class 4 cbse_deepa unnikrishnan
Solid liquid and gases class 4 cbse_deepa unnikrishnan
More from Norhan Zahran
Where does Soil come from?
Soil is formed over long periods of time from the breakdown of rocks and dead plants and animals into smaller particles. These particles are decomposed by organisms into nutrients that make up soil. Soil texture and composition can vary depending on the size of particles, which range from very small clay to larger sand, with silt and loam mixtures draining water at different rates.
What is sound
Sound is important because it tells us things, helps us stay safe, and can help us wake up. Sound is caused by vibration, which is the movement back and forth. Sounds can have different volumes, being either loud or soft, and different pitches, being either high or low. The document discusses what sound is, why it is important, how vibration causes it, and that sounds can have different volumes and pitches.
Rocks 2018
Rocks are a non-living natural resource that come in different sizes, shapes, and colors and have been used as tools for thousands of years. Some examples of rocks and their uses include chalk for making chalk, marble for making statues, slate for making roof tiles, limestone for making cement, and granite for making kitchen tables. Other rocks like graphite are used for pencils, magnetite for magnets, fluorite for toothpaste, and turquoise for jewelry.
How does earth's motion cause day and night?
The Earth's rotation on its axis causes day and night. As the Earth spins, one side constantly faces the sun and experiences day while the other side faces away from the sun and experiences night. This rotation takes place every 24 hours, with each rotation constituting a full day and night cycle. The apparent movement of the sun and moon is actually due to the Earth's rotation, not their movement.
What can change how things move?
Force is the power that helps us move things. There are two types of forces: push forces and pull forces. Push forces move objects away while pull forces move objects towards the thing applying the force.
How do you describe motion?
Motion is defined as a change in an object's place or position. There are three main types of motion: straight motion where an object moves in a straight line, circular motion where an object moves in a circular path, and zigzag motion where an object moves back and forth in an irregular pattern. Examples are given for each type of motion including marching ants and soldiers, fan blades and clock hands, and rollercoasters.
How can you measure weather?
The document describes the 4 seasons and different types of weather. It notes that winter is cold so dark heavy clothes are worn, spring is warm as flowers bloom, summer is hot so light clothes and beaches are common, and autumn is cool as leaves fall from trees. Different weather phenomena are also outlined such as wind, rain, snow, sleet, hail, and how weather is measured with tools.
Electricity
Electricity is important in powering many devices in homes and making them more convenient. It comes from power plants and is delivered to homes through outlets. Without electricity, many modern conveniences like lights, appliances, and electronics would not function. Electricity can power devices directly from outlets or through batteries and can be converted into different forms of energy like heat, light, sound, and motion to operate machines. Proper safety rules must be followed when using electricity.
Y2_Electricity
Electricity is important in our lives and powers many devices in our homes. If the electricity went out this morning, it would be difficult to function without devices like lights, appliances, and electronics. Electricity comes from power plants and is delivered to homes through wires, where it can power devices plugged into outlets on walls or run on batteries. Electricity can be converted into different forms of energy like heat, light, sound, and motion to power various machines and devices. Proper safety around electricity is important.
Y2_How temperature affect matter?
Melting involves changing a solid into a liquid state using heat. Boiling changes a liquid into a gas (water vapor) with heat, while freezing is the reverse process of changing liquid to solid with cooling. Condensation occurs when a gas changes to a liquid state by contacting a cold surface, such as water vapor condensing to liquid water on the outside of a cold drink. These changes of state between solid, liquid, and gas are caused by the addition or removal of heat from the substance.
W4 (21 1 24-1) plant parts
The document discusses plant parts and how plants grow. It lists the main plant parts as roots, stem, leaves, and flowers. Roots take in water and nutrients from the soil, the stem holds up the plant and transports water and nutrients, leaves produce food for the plant through photosynthesis, and flowers are involved in reproduction. It then outlines the basic stages of plant growth, starting from a seed where a root emerges followed by a stem and leaves as the whole plant develops.
Matter Year 2
This document discusses the three states of matter - solid, liquid, and gas - and describes their key properties. It also distinguishes between physical changes, like cutting, bending, and freezing, which alter the shape or form of matter but not its chemical composition, and chemical changes like heating, rusting, and burning, which produce new substances.
Matter
This document discusses the different states of matter - solid, liquid, and gas - and the physical and chemical changes that can occur to matter. Physical changes include cutting, bending, squashing, twisting, stretching, and freezing, which change the shape or form of matter but not its chemical makeup. Chemical changes, such as heating, rusting, and burning, involve changes to the chemical composition of matter.
Living & non living things
This document discusses the differences between living and non-living things. It asks a series of questions to help determine whether something needs air, water, food, can grow and change, move, and occupy space in order to establish if it is living or non-living. Examples of a living thing that is discussed is a fish, while characteristics of both living and non-living things are listed to aid in the comparison.
W1 lab tools balance,thermometer and dropper
Lab tools are used to make colorful cupcakes and measure ingredients. A dropper is used to add food coloring to cake mixtures. A thermometer measures temperature and can be used to check if someone has a fever. A balance measures weight and can measure how much sugar to add to cake batter. Making jelly requires using different tools - a balance to measure powder, a thermometer to check liquid temperature, a dropper to add food coloring, and following steps of mixing, cooling, and molding the jelly.
lab safety rules
We want you to stay safe in the lab by following these rules: do not eat, drink, play or run; do not touch anything hot; wear goggles and lab coats to protect your eyes and body, and wear gloves to protect your hands.
W12 lab tools
This document provides instructions for using common lab tools like goggles, measuring cups, measuring tapes, magnifying lenses, and forceps. It describes what each tool is used for, like using goggles to protect eyes, a measuring cup to measure liquids, a measuring tape to measure length or height, a magnifying lens to make things look bigger, and forceps to help separate items. It also includes examples of using the tools, such as measuring 40ml of liquid, measuring a colleague's height as 3cm, using forceps to pick up paper and a magnifying lens to read it.
Hydraulic pressure
This document discusses using water pressure and hydraulics to move objects. It introduces the concept of a hydraulic system using two syringes connected by a tube, where squeezing one syringe causes the other to move due to water pressure transfer through the tube. The document suggests applying the scientific method to test if water can be used to move things.
Epic rocket
Rocket flight is powered by chemical reactions in the fuel that produce gases. The document discusses how rockets use fuel that undergoes chemical changes to produce carbon dioxide gas, building pressure and allowing the rocket to fly. It also asks if varying the amount of vinegar in a baking soda and vinegar rocket reaction would affect how high the rocket flies, suggesting applying the scientific method to test this.
Walking water
Water can move upwards against gravity through thin tubes due to capillary action, where water molecules are attracted to the sides of the tube and to each other, causing water to rise in narrow spaces. Capillary action allows water to travel through thin spaces like plant stems without the need for pipes.
More from Norhan Zahran (20)
Recently uploaded
8.Isolation of pure cultures and preservation of cultures.pdf
Isolation of pure culture, its various method.
bordetella pertussis.................................ppt
Bordettela is a gram negative cocobacilli spread by air born drop let
Deep Software Variability and Frictionless Reproducibility
Deep Software Variability and Frictionless ReproducibilityUniversity of Rennes, INSA Rennes, Inria/IRISA, CNRS
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
Equivariant neural networks and representation theory
Or: Beyond linear.
Abstract: Equivariant neural networks are neural networks that incorporate symmetries. The nonlinear activation functions in these networks result in interesting nonlinear equivariant maps between simple representations, and motivate the key player of this talk: piecewise linear representation theory.
Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
Shallowest Oil Discovery of Turkiye.pptx
The Petroleum System of the Çukurova Field - the Shallowest Oil Discovery of Türkiye, Adana
Sharlene Leurig - Enabling Onsite Water Use with Net Zero Water
Sharlene Leurig - Enabling Onsite Water Use with Net Zero WaterTexas Alliance of Groundwater Districts
Presented at June 6-7 Texas Alliance of Groundwater Districts Business Meeting20240520 Planning a Circuit Simulator in JavaScript.pptx
Evaporation step counter work. I have done a physical experiment.
(Work in progress.)
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/Thornton ESPP slides UK WW Network 4_6_24.pdf
ESPP presentation to EU Waste Water Network, 4th June 2024 “EU policies driving nutrient removal and recycling
and the revised UWWTD (Urban Waste Water Treatment Directive)”
The binding of cosmological structures by massless topological defects
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
SAR of Medicinal Chemistry 1st by dk.pdf
In this presentation include the prototype drug SAR on thus or with their examples .
Syllabus of Second Year B. Pharmacy
2019 PATTERN.
Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...
The pygmy halfbeak Dermogenys colletei, is known for its viviparous nature, this presents an intriguing case of relatively low fecundity, raising questions about potential compensatory reproductive strategies employed by this species. Our study delves into the examination of fecundity and the Gonadosomatic Index (GSI) in the Pygmy Halfbeak, D. colletei (Meisner, 2001), an intriguing viviparous fish indigenous to Sarawak, Borneo. We hypothesize that the Pygmy halfbeak, D. colletei, may exhibit unique reproductive adaptations to offset its low fecundity, thus enhancing its survival and fitness. To address this, we conducted a comprehensive study utilizing 28 mature female specimens of D. colletei, carefully measuring fecundity and GSI to shed light on the reproductive adaptations of this species. Our findings reveal that D. colletei indeed exhibits low fecundity, with a mean of 16.76 ± 2.01, and a mean GSI of 12.83 ± 1.27, providing crucial insights into the reproductive mechanisms at play in this species. These results underscore the existence of unique reproductive strategies in D. colletei, enabling its adaptation and persistence in Borneo's diverse aquatic ecosystems, and call for further ecological research to elucidate these mechanisms. This study lends to a better understanding of viviparous fish in Borneo and contributes to the broader field of aquatic ecology, enhancing our knowledge of species adaptations to unique ecological challenges.
Bob Reedy - Nitrate in Texas Groundwater.pdf
Presented at June 6-7 Texas Alliance of Groundwater Districts Business Meeting
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptx
Abnormal or anomalous secondary growth in plants. It defines secondary growth as an increase in plant girth due to vascular cambium or cork cambium. Anomalous secondary growth does not follow the normal pattern of a single vascular cambium producing xylem internally and phloem externally.
Recently uploaded (20)
8.Isolation of pure cultures and preservation of cultures.pdf
8.Isolation of pure cultures and preservation of cultures.pdf
bordetella pertussis.................................ppt
bordetella pertussis.................................ppt
Deep Software Variability and Frictionless Reproducibility
Deep Software Variability and Frictionless Reproducibility
Equivariant neural networks and representation theory
Equivariant neural networks and representation theory
Sharlene Leurig - Enabling Onsite Water Use with Net Zero Water
Sharlene Leurig - Enabling Onsite Water Use with Net Zero Water
20240520 Planning a Circuit Simulator in JavaScript.pptx
20240520 Planning a Circuit Simulator in JavaScript.pptx
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
aziz sancar nobel prize winner: from mardin to nobel
aziz sancar nobel prize winner: from mardin to nobel
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
The binding of cosmological structures by massless topological defects
The binding of cosmological structures by massless topological defects
Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...
Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...
Y2 2018_How temperature changes matter
- 2. Melting is changing the solid state into a liquid state SolidSolid LiquidLiquid HEAT
- 3. SolidSolid LiquidLiquid HEAT Melting is changing the solid state into a liquid state
- 4. Boiling is changing the liquid state into a Gas state GasGas Water vapourWater vapour LiquidLiquid WaterWater HEAT
- 6. Freezing is changing the liquid state into a solid state SolidSolid Ice cubesIce cubes LiquidLiquid WaterWater COOL
- 7. Condensation is changing the gas state into a liquid state [when it touches a cold surface] LiquidLiquidGasGas Cold surface
- 9. Boiling
- 10. Thank you!