This document discusses physical and chemical changes of matter. A physical change alters the form of a substance but not its chemical composition, such as melting or tearing. A chemical change produces new substances through chemical reactions, like burning or rusting. Chemical changes are identified through evidence like temperature change, gas formation, or new colors/solids. The document also covers states of matter, phase changes, the kinetic molecular theory, and temperature scales.
Lesson teaches students about Matter (grades 6-8) & talks about the atomic models & the history behind the way it has been established through physics.
This Lesson Also Includes:
1. Physical & Chemical Changes
2. States of Matter & Phase Changes in Matter
3. Molecular Movements in a Solid, Liquid, & Vapor
Describe the structure of solids, liquids and gases in terms of particle separation, arrangement and types of motion
State the distinguishing properties of solids, liquids and gases
• Describe and explain diffusion (1 core)
• Describe evidence for the movement of particles in gases and liquids (1 core)
Describe changes of state in terms of melting, boiling, evaporation, freezing, condensation and sublimation
Explain changes of state in terms of the kinetictheory
Lesson teaches students about Matter (grades 6-8) & talks about the atomic models & the history behind the way it has been established through physics.
This Lesson Also Includes:
1. Physical & Chemical Changes
2. States of Matter & Phase Changes in Matter
3. Molecular Movements in a Solid, Liquid, & Vapor
Describe the structure of solids, liquids and gases in terms of particle separation, arrangement and types of motion
State the distinguishing properties of solids, liquids and gases
• Describe and explain diffusion (1 core)
• Describe evidence for the movement of particles in gases and liquids (1 core)
Describe changes of state in terms of melting, boiling, evaporation, freezing, condensation and sublimation
Explain changes of state in terms of the kinetictheory
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
2. What is “Change”?
It is the act of altering a substance.
An event, NOT a trait.
Before condition After condition.
Can be PHYSICAL or CHEMICAL.
3. Physical Change
Does not alter the chemical composition or
identity of the substance, only the form.
Melting ice (change in state or phase)
Freezing Kool-aid
Tearing paper
Boiling water (change in state or phase)
Stretching silly putty
Making a mixture (ex. Sugar water)
Unmixing a mixture (ex. sorting)
4. Chemical Changes
Does alter the chemical composition or
identity of a substance and makes new
substances.
Burning paper
Digesting food
Rotting
Iron reacting with oxygen gas
A chemical change is also called a chemical
reaction.
5. Is it Physical or Chemical?
Change Physical Chemical
Melting cheese
Burning wood
Milk souring
Wadding up paper
Bicycle rusting
6. All Changes of Matter Involve Energy
being Tranfered and Transformed
Energy always moves between the system
and the surroundings during changes of
matter.
System = the chemicals of interest
Surroundings = everything else (including
the beaker and thermometer)
Energy cannot be created or destroyed, it can
only be transferred from place to place and
transformed from type to type (Law of
Conservation of Energy).
7. Exothermic change - heat moves out
the the system into the surroundings.
The surroundings get hotter.
System
Surroundings
System
System
System
8. Endothermic change – Heat moves
into the system from the surroundings,
so the surroundings gets colder!
System
Surroundings
System
Surroundings
System
System
Surroundings
Surroundings
Surroundings
9. Changes of Matter Demos
Magnesium + oxygen gas
Ammonium nitrate + water
10. Law of Conservation of Mass
Matter is never created or destroyed in
chemical reactions.
Mass of reactants = Mass of products
Why???
Because atoms are simply rearranged
in new ways in chemical reactions.
(LEGO analogy)
11. Parts of a Chemical Reaction
Reactants Products
Reactants: Substances that are broken
down by the chemical change.
Products: Substances created by the
chemical change.
Means “Yields”
17. Chemical Reactions Produce New
Substance with New Properties
Ex. Iron Plus Oxygen Yields Rust
4 Fe (s) + 3O2 (g) 2 Fe2O3 (s)
Iron Oxygen Rust
Physical
Properties
Chemical
Properties
Mass 226 g 93 g 319 g
18. States of Matter
The 3 main states of matter: solid, liquid, gas.
Changes in state are physical changes (no
change in composition).
Temperature is caused by the vibrational
(kinetic) energy of atoms or molecules.
As temperature increases, 1) solids turn to
liquids, and 2) liquids turn to gases.
20. Kinetic Molecular Theory of Matter
A theory that describes the differences between
the states of matter in terms of particle behavior
1) all matter is made of tiny particles (atoms,
molecules)
2) particles in matter are constantly moving
(vibrating) , except at absolute zero
3) The volume that matter occupies is mainly due
to the space between particles rather than the
particles themselves; the particles are very small
21. Kinetic Molecular Theory - Continued
4) In a solid, attractive forces hold the
particles close together, although they still
vibrate in positions.
5) In a liquid, the particles may move past
one another, particles motions are slightly
more random, and particles are spread out
slightly more than in the solid. Attractions
between particles are still important.
6) In a gas, particles are very spread out.
They move in straight line, random paths until
they collide elastically with each other or the
walls of the container. Attractive forces
between particles are negligible.
24. THE 3 TEMPERATURE SCALES
Symbol Reference Points
Celsius C Water freezes at 0C;
Water boils at 100C.
Fahrenheit F Water freezes at 32F.
Body temp. = 98.6F.
Kelvin K Atoms and molecules
stop vibrating at 0 K
(absolute zero).