Solids maintain their own shape and occupy a fixed space, while liquids take the shape of their container but maintain a fixed volume, and gases expand to fill their container.
There are four fundamental forms of matter: solids, liquids, gases, and plasma. Solids have a definite shape and volume due to their rigid molecular structure. Liquids also have a definite volume but cannot maintain a definite shape as their molecules are drawn together weakly, allowing liquids to flow and take the shape of their container. Gases have neither a definite shape nor volume as their molecules are very weakly bonded and spread out to fill their container. Plasma differs from solids, liquids, and gases in that its molecules are ionized, meaning they are positively or negatively charged, and thus exhibit electromagnetic properties.
This document discusses the properties and states of matter. It defines a substance as a pure matter that maintains its identity regardless of physical or chemical changes. Matter exists in three states - solid, liquid, and gas - depending on how tightly or loosely the particles are packed. Physical properties help identify substances and include characteristics like color, shape, smell, as well as extensive properties that depend on amount such as mass and volume, and intensive properties that are independent of amount, like density.
Plasma is the fourth state of matter and is the most common state of matter in the universe. Plasma is a gas that has had enough energy added to free electrons from atoms and molecules, allowing ions and electrons to coexist. To create plasma requires higher temperatures than a flame can produce, with enough energy to kick electrons out of atoms during collisions. Plasma is essentially an ionized gas and can be seen in sparks, plasma torches, and as the main component of stars like the sun.
Matter can exist in different states depending on factors like temperature, pressure and volume. The document defines matter and its states, including solids, liquids, gases and more exotic states. It discusses the kinetic theory of particles and how interconversion between states of matter, also called phase transitions, occur through various processes as energy is increased or decreased, causing changes in structure and properties.
There are four main states of matter: solids, liquids, gases, and plasma. Solids have tightly packed particles that vibrate in a fixed position and have a definite shape and volume. Liquids also have tightly packed particles, but they can slide over one another, giving liquids an indefinite shape but definite volume. Gas particles are far apart, move freely, and have indefinite shape and volume. Plasma is an ionized gas that conducts electricity and is affected by magnetic fields, also having indefinite shape and volume. The document then provides examples of each state.
The document discusses the particle model of matter and its key concepts. It explains that matter is made up of tiny particles called atoms that combine to form different substances. The document also outlines the three main states of matter - solid, liquid, and gas - and introduces plasma as the fourth state. It defines several properties of matter and explains that a substance's properties are determined by how its particles are arranged. The document concludes by distinguishing between physical and chemical changes, noting that a chemical change results in new substances forming.
Sara studied 8 rocks over 3 days as part of a school project where she had to pretend to be a geologist. 7 of the rocks were igneous rocks formed from cooling magma and lava, while the other rock was metamorphic, formed under heat and pressure. Sara created a power point to document her 3-day study of the rocks and identification of them as either sedimentary, metamorphic, or igneous based on their formation.
This document discusses the three states of matter - solids, liquids, and gases. It defines each state and explains how their particle arrangements differ. Solids have a definite shape and volume, while liquids have a definite volume but not shape, and gases fill their container. The document also covers physical changes like melting, freezing, and evaporation which alter a substance's state without changing its chemical makeup. Finally, it defines mixtures as combinations of materials that retain their individual properties, and solutions as mixtures where one material disseminates evenly throughout another.
There are four fundamental forms of matter: solids, liquids, gases, and plasma. Solids have a definite shape and volume due to their rigid molecular structure. Liquids also have a definite volume but cannot maintain a definite shape as their molecules are drawn together weakly, allowing liquids to flow and take the shape of their container. Gases have neither a definite shape nor volume as their molecules are very weakly bonded and spread out to fill their container. Plasma differs from solids, liquids, and gases in that its molecules are ionized, meaning they are positively or negatively charged, and thus exhibit electromagnetic properties.
This document discusses the properties and states of matter. It defines a substance as a pure matter that maintains its identity regardless of physical or chemical changes. Matter exists in three states - solid, liquid, and gas - depending on how tightly or loosely the particles are packed. Physical properties help identify substances and include characteristics like color, shape, smell, as well as extensive properties that depend on amount such as mass and volume, and intensive properties that are independent of amount, like density.
Plasma is the fourth state of matter and is the most common state of matter in the universe. Plasma is a gas that has had enough energy added to free electrons from atoms and molecules, allowing ions and electrons to coexist. To create plasma requires higher temperatures than a flame can produce, with enough energy to kick electrons out of atoms during collisions. Plasma is essentially an ionized gas and can be seen in sparks, plasma torches, and as the main component of stars like the sun.
Matter can exist in different states depending on factors like temperature, pressure and volume. The document defines matter and its states, including solids, liquids, gases and more exotic states. It discusses the kinetic theory of particles and how interconversion between states of matter, also called phase transitions, occur through various processes as energy is increased or decreased, causing changes in structure and properties.
There are four main states of matter: solids, liquids, gases, and plasma. Solids have tightly packed particles that vibrate in a fixed position and have a definite shape and volume. Liquids also have tightly packed particles, but they can slide over one another, giving liquids an indefinite shape but definite volume. Gas particles are far apart, move freely, and have indefinite shape and volume. Plasma is an ionized gas that conducts electricity and is affected by magnetic fields, also having indefinite shape and volume. The document then provides examples of each state.
The document discusses the particle model of matter and its key concepts. It explains that matter is made up of tiny particles called atoms that combine to form different substances. The document also outlines the three main states of matter - solid, liquid, and gas - and introduces plasma as the fourth state. It defines several properties of matter and explains that a substance's properties are determined by how its particles are arranged. The document concludes by distinguishing between physical and chemical changes, noting that a chemical change results in new substances forming.
Sara studied 8 rocks over 3 days as part of a school project where she had to pretend to be a geologist. 7 of the rocks were igneous rocks formed from cooling magma and lava, while the other rock was metamorphic, formed under heat and pressure. Sara created a power point to document her 3-day study of the rocks and identification of them as either sedimentary, metamorphic, or igneous based on their formation.
This document discusses the three states of matter - solids, liquids, and gases. It defines each state and explains how their particle arrangements differ. Solids have a definite shape and volume, while liquids have a definite volume but not shape, and gases fill their container. The document also covers physical changes like melting, freezing, and evaporation which alter a substance's state without changing its chemical makeup. Finally, it defines mixtures as combinations of materials that retain their individual properties, and solutions as mixtures where one material disseminates evenly throughout another.
Mass is the amount of matter that an object contains, while volume is the space that matter occupies. Mass is measured in grams and kilograms by using scales to weigh an object. Volume can be measured using liters to determine how much space an object takes up.
There are six main types of energy: kinetic, electrical, chemical, light, sound, and thermal. The document also discusses renewable and non-renewable sources of energy. Non-renewable sources like coal, petroleum, and natural gas are limited and pollute the environment when burned, while renewable sources like the sun, wind, water, and organic matter are unlimited and do not pollute.
Water is an example of matter that exists in three states: as a gas over 100°C, as a liquid between 1-99°C, and as a solid below 0°C. It is made of hydrogen and oxygen, has volume and mass, and is odorless, colorless, and tasteless. Water changes state through heating and cooling, melting when heated as a solid, evaporating when heated as a liquid, freezing when cooled as a liquid, and condensing when cooled as a gas.
This document discusses measurement of length in kilometres and metres. It provides examples of common length measurements including millimetres, centimetres, metres and kilometres. It explains that 1 metre is equal to 100 centimetres, and 1 kilometre is equal to 1000 metres. Examples are given to convert between centimetres and metres, and between metres and kilometres. Practice questions are included at the end to test understanding of converting between these units of length measurement.
The document discusses different units of measurement for length and provides examples. It explains that centimeters (cm) would be used to measure a foot, while meters (m) would be used to measure the length of a tennis court. It notes that 100 cm equals 1 m and provides a visual example of 3 rulers measuring 90 cm, which is almost equal to 1 meter in length.
This document discusses different measurement units and asks the reader to identify the appropriate unit to use when measuring different objects. It asks the reader to measure lengths in kilometers, meters, centimeters, and millimeters. It also asks the reader to recall conversion factors between units like millimeters in a centimeter or centimeters in a meter to help choose the right measurement unit.
We would use grams (g) to measure the mass of a peanut, as peanuts have very little mass and are considered light. An average peanut weighs around 5g. In contrast, we would use kilograms (kg) to measure the mass of much heavier objects like elephants and cars. As an example, one elephant weighs approximately 2,700kg, while a peanut is only 5g. Grams and kilograms are the standard units used to measure very small and very large masses, respectively, with 1000g equaling 1kg.
Water can exist in three states: as a liquid, which takes the shape of its container; as a solid like ice or snow; and as an invisible gas called water vapor, which forms clouds and steam. Water changes between these states through the addition or subtraction of heat, with solids melting into liquids and liquids evaporating into vapor when heat is added, or liquids freezing into solids when heat is removed.
This document discusses matter, energy, and forces. It explains that matter can change through physical or chemical changes. Physical changes alter the state, shape, or size of matter but do not create a new substance, while chemical changes produce a new material. The document also describes different types of forces, including contact forces like applied force and buoyancy, and non-contact forces such as gravity and magnetism. Finally, it discusses various forms of energy like kinetic, electrical, chemical, and thermal energy, and explains that energy sources can be non-renewable like fossil fuels or renewable like solar, wind, and hydropower.
An ecosystem includes both living and non-living components. It is composed of a biotope, the non-living elements like climate and soil, and a biocoenosis, the living elements. Organisms have trophic relationships where some eat others in a food chain. Ecosystems can be classified by type like prairie or pond. The biosphere is the largest biome and includes all Earth's ecosystems. Ecosystems change naturally through seasonal variations but also due to human activities such as pollution, overfishing, forest fires, and deforestation.
This document provides instructions for converting decimals to fractions and fractions to decimals. It explains that the place value of the last digit determines the denominator of the fraction. For decimals, the place value is determined by powers of ten. For fractions, the place value determines where the digit goes in the decimal. It also addresses situations where the denominator is not a power of ten, in which case the fraction needs to be divided.
El documento proporciona instrucciones para acceder a contenidos educativos desde casa a través de la aplicación Oxford Plus. Primero se debe descargar la aplicación e iniciar sesión con una cuenta de alumno creada con los datos de los padres. Luego se introduce el código del libro o módulo en la página web para canjearlo de forma gratuita y recibir un código de activación por correo. Finalmente, se introduce este código en la aplicación para descargar y acceder al contenido deseado de ciencias naturales o sociales desde cualquier lugar.
This document appears to be an English language exam consisting of 3 sections testing vocabulary, grammar, and language usage. The first section asks the test taker to match 8 words with pictures. The second section contains 8 sentences to be completed with either "who" or "which". The third section contains 7 sentences to circle the correct choice of either "who" or "that". The document provides the questions and space for answers but does not include the test taker's responses.
El documento describe los tres sectores de la economía en España y Europa - el sector primario, que incluye actividades como la agricultura, ganadería y pesca para obtener recursos de la naturaleza; el sector secundario, que se dedica a la transformación de materias primas e incluye la industria y construcción; y el sector terciario de servicios, que comprende actividades como el comercio, transporte y turismo.
Light is a type of energy that travels in invisible waves and always in straight lines. It has no volume or mass but we can see it. When an object blocks light, it forms a shadow. Light is actually made up of seven colors in the light spectrum, and every object absorbs some colors and reflects others, which is why a leaf appears green, a red car appears red, black objects absorb all colors and get hot, while white objects reflect all colors and stay cool.
This document describes several chemical reactions involving oxygen. It shows water (H2O) as the product of a wood fire with oxygen and heat. It also lists milk undergoing lactic fermentation to produce cheese and flour, water and yeast producing bread when heated. Finally, it indicates iron reacting with oxygen forms rust and an apple reacting with oxygen becomes oxidized.
The document discusses different types of invertebrates including mollusks like snails and clams, jellyfish, sponges, starfish, earthworms, arthropods like insects and spiders, and crustaceans like crabs and lobsters. It notes that 97% of all animals on earth are invertebrates and they are found everywhere and come in many different types.
This document contains profiles for 5 passengers boarding an Apis crew spaceship. Each profile lists the passenger's name, age, country, jobs, likes, and dislikes. The passengers come from countries like the USA, Japan, South Africa, Mexico, and Spain and have jobs as commanders, scientists, doctors, pilots, and an automatic helper. Their interests include various sports, hobbies, films, foods and activities.
Dr. Lorraine Djali is the doctor on the Apis spaceship mission. She notes that there are many first aid kits on board to handle emergencies like fractures, burns, choking, cardiac or respiratory arrest, and wounds. The first aid kits contain items like disposable gloves, antiseptic wipes, bandages, sterile dressings, adhesive tape, tweezers, and scissors to clean, disinfect, and dress wounds. Dr. Djali provides instructions on using these various items to treat different medical issues until further help can be reached.
Mass is the amount of matter that an object contains, while volume is the space that matter occupies. Mass is measured in grams and kilograms by using scales to weigh an object. Volume can be measured using liters to determine how much space an object takes up.
There are six main types of energy: kinetic, electrical, chemical, light, sound, and thermal. The document also discusses renewable and non-renewable sources of energy. Non-renewable sources like coal, petroleum, and natural gas are limited and pollute the environment when burned, while renewable sources like the sun, wind, water, and organic matter are unlimited and do not pollute.
Water is an example of matter that exists in three states: as a gas over 100°C, as a liquid between 1-99°C, and as a solid below 0°C. It is made of hydrogen and oxygen, has volume and mass, and is odorless, colorless, and tasteless. Water changes state through heating and cooling, melting when heated as a solid, evaporating when heated as a liquid, freezing when cooled as a liquid, and condensing when cooled as a gas.
This document discusses measurement of length in kilometres and metres. It provides examples of common length measurements including millimetres, centimetres, metres and kilometres. It explains that 1 metre is equal to 100 centimetres, and 1 kilometre is equal to 1000 metres. Examples are given to convert between centimetres and metres, and between metres and kilometres. Practice questions are included at the end to test understanding of converting between these units of length measurement.
The document discusses different units of measurement for length and provides examples. It explains that centimeters (cm) would be used to measure a foot, while meters (m) would be used to measure the length of a tennis court. It notes that 100 cm equals 1 m and provides a visual example of 3 rulers measuring 90 cm, which is almost equal to 1 meter in length.
This document discusses different measurement units and asks the reader to identify the appropriate unit to use when measuring different objects. It asks the reader to measure lengths in kilometers, meters, centimeters, and millimeters. It also asks the reader to recall conversion factors between units like millimeters in a centimeter or centimeters in a meter to help choose the right measurement unit.
We would use grams (g) to measure the mass of a peanut, as peanuts have very little mass and are considered light. An average peanut weighs around 5g. In contrast, we would use kilograms (kg) to measure the mass of much heavier objects like elephants and cars. As an example, one elephant weighs approximately 2,700kg, while a peanut is only 5g. Grams and kilograms are the standard units used to measure very small and very large masses, respectively, with 1000g equaling 1kg.
Water can exist in three states: as a liquid, which takes the shape of its container; as a solid like ice or snow; and as an invisible gas called water vapor, which forms clouds and steam. Water changes between these states through the addition or subtraction of heat, with solids melting into liquids and liquids evaporating into vapor when heat is added, or liquids freezing into solids when heat is removed.
This document discusses matter, energy, and forces. It explains that matter can change through physical or chemical changes. Physical changes alter the state, shape, or size of matter but do not create a new substance, while chemical changes produce a new material. The document also describes different types of forces, including contact forces like applied force and buoyancy, and non-contact forces such as gravity and magnetism. Finally, it discusses various forms of energy like kinetic, electrical, chemical, and thermal energy, and explains that energy sources can be non-renewable like fossil fuels or renewable like solar, wind, and hydropower.
An ecosystem includes both living and non-living components. It is composed of a biotope, the non-living elements like climate and soil, and a biocoenosis, the living elements. Organisms have trophic relationships where some eat others in a food chain. Ecosystems can be classified by type like prairie or pond. The biosphere is the largest biome and includes all Earth's ecosystems. Ecosystems change naturally through seasonal variations but also due to human activities such as pollution, overfishing, forest fires, and deforestation.
This document provides instructions for converting decimals to fractions and fractions to decimals. It explains that the place value of the last digit determines the denominator of the fraction. For decimals, the place value is determined by powers of ten. For fractions, the place value determines where the digit goes in the decimal. It also addresses situations where the denominator is not a power of ten, in which case the fraction needs to be divided.
El documento proporciona instrucciones para acceder a contenidos educativos desde casa a través de la aplicación Oxford Plus. Primero se debe descargar la aplicación e iniciar sesión con una cuenta de alumno creada con los datos de los padres. Luego se introduce el código del libro o módulo en la página web para canjearlo de forma gratuita y recibir un código de activación por correo. Finalmente, se introduce este código en la aplicación para descargar y acceder al contenido deseado de ciencias naturales o sociales desde cualquier lugar.
This document appears to be an English language exam consisting of 3 sections testing vocabulary, grammar, and language usage. The first section asks the test taker to match 8 words with pictures. The second section contains 8 sentences to be completed with either "who" or "which". The third section contains 7 sentences to circle the correct choice of either "who" or "that". The document provides the questions and space for answers but does not include the test taker's responses.
El documento describe los tres sectores de la economía en España y Europa - el sector primario, que incluye actividades como la agricultura, ganadería y pesca para obtener recursos de la naturaleza; el sector secundario, que se dedica a la transformación de materias primas e incluye la industria y construcción; y el sector terciario de servicios, que comprende actividades como el comercio, transporte y turismo.
Light is a type of energy that travels in invisible waves and always in straight lines. It has no volume or mass but we can see it. When an object blocks light, it forms a shadow. Light is actually made up of seven colors in the light spectrum, and every object absorbs some colors and reflects others, which is why a leaf appears green, a red car appears red, black objects absorb all colors and get hot, while white objects reflect all colors and stay cool.
This document describes several chemical reactions involving oxygen. It shows water (H2O) as the product of a wood fire with oxygen and heat. It also lists milk undergoing lactic fermentation to produce cheese and flour, water and yeast producing bread when heated. Finally, it indicates iron reacting with oxygen forms rust and an apple reacting with oxygen becomes oxidized.
The document discusses different types of invertebrates including mollusks like snails and clams, jellyfish, sponges, starfish, earthworms, arthropods like insects and spiders, and crustaceans like crabs and lobsters. It notes that 97% of all animals on earth are invertebrates and they are found everywhere and come in many different types.
This document contains profiles for 5 passengers boarding an Apis crew spaceship. Each profile lists the passenger's name, age, country, jobs, likes, and dislikes. The passengers come from countries like the USA, Japan, South Africa, Mexico, and Spain and have jobs as commanders, scientists, doctors, pilots, and an automatic helper. Their interests include various sports, hobbies, films, foods and activities.
Dr. Lorraine Djali is the doctor on the Apis spaceship mission. She notes that there are many first aid kits on board to handle emergencies like fractures, burns, choking, cardiac or respiratory arrest, and wounds. The first aid kits contain items like disposable gloves, antiseptic wipes, bandages, sterile dressings, adhesive tape, tweezers, and scissors to clean, disinfect, and dress wounds. Dr. Djali provides instructions on using these various items to treat different medical issues until further help can be reached.
This document recommends consuming fats from vegetables like walnuts, berries, peanuts, and oats which raise good HDL cholesterol levels, while advising against fats from animals like red meat, butter, and fried snacks which raise bad LDL cholesterol levels. It also suggests practicing sports and meditation to increase HDL cholesterol levels.
Maggie is 7 months pregnant and will explain the basic human reproductive system, which involves the ovaries producing eggs, the testicles producing sperm, and fertilization occurring when a sperm fertilizes an egg to reproduce.
The circulatory system consists of blood, which transports oxygen, nutrients, carbon dioxide, and waste throughout the body in blood vessels. Blood is composed of plasma, red blood cells, white blood cells, and platelets. The heart, located in the chest, pumps blood continuously through arteries to organs and returns blood through veins, ensuring organs receive oxygen and nutrients and remove waste.
The respiratory system includes the nostrils, windpipe, bronchi, lungs and diaphragm. It allows oxygen to enter the bloodstream when breathing in through the nose and nostrils, then passes through the windpipe and bronchi into the lungs, where oxygen passes into the blood in the alveoli and carbon dioxide passes out of the blood and into the air to be breathed out. The diaphragm contracts and relaxes to help draw air in and push air out during breathing.
The circulatory system transports nutrients and oxygen around the body using blood, blood vessels, and the heart. Blood picks up oxygen from the lungs and nutrients from digested food, then is pumped by the heart through blood vessels to deliver these to tissues before returning carbon dioxide and waste to be removed. The heart is a muscle located in the chest that continuously pumps blood to circulate nutrients and oxygen to all parts of the body.
La mayor parte de la población mundial vive en Asia, seguida de África, Europa, América Latina y el Caribe, América del Norte y Oceanía. Las áreas más densamente pobladas tienden a ser las regiones con climas templados y acceso a recursos como agua dulce y tierras fértiles.
The excretory system helps the body eliminate excess water and waste products through the kidneys, ureters, bladder, and urethra. The kidneys filter blood and remove waste and water, which travels through ureters to the bladder for storage until it is full and signals the brain to empty through the urethra.
The document discusses the six classic simple machines - the lever, pulley, inclined plane, screw, wheels and axle, and wedge. For each machine, it states that machines make work easier and provides the name of the simple machine. It concludes by noting that simple machines have between 1 and 4 pieces.
Machines make work easier for people in different jobs. Mechanics use tools like pliers, screwdrivers, and spanners to fix machines. Farmers rely on tractors, rakes, and combine harvesters to plant and harvest crops. Doctors also use machines like syringes, ultrasound machines, X-rays to examine and treat patients.
Machines help with various tasks at home, work, and leisure. Home appliances like vacuum cleaners, washing machines, and dishwashers assist with chores, while communication devices such as tablets, phones, and computers allow people to connect. Transportation machines from cars and motorbikes to planes and shuttles help with mobility, and entertainment machines provide enjoyment during free time.
Machines are instruments that make work easier. There are two types of machines: simple machines and complex machines. Simple machines have one or two parts and include pliers, screwdrivers, bottle openers, and pencil sharpeners. Complex machines have many parts and include washing machines, electric screwdrivers, watches, and bicycles. All machines need energy to work, with some using fuels like those in cars, planes, and buses, others using electricity like hairdryers and electric drills, and some using human energy like staplers and scissors.
Clovers are plants that are born, grow, and die. They have roots, stems, flowers, and leaves, and use their flowers to reproduce. Flowers have male stamens that produce pollen and female pistils with ovules inside, and pollen fertilizes the ovules to create seeds and fruit.
Elevate Your Nonprofit's Online Presence_ A Guide to Effective SEO Strategies...TechSoup
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This presentation was provided by Racquel Jemison, Ph.D., Christina MacLaughlin, Ph.D., and Paulomi Majumder. Ph.D., all of the American Chemical Society, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.