The document discusses physical and chemical changes of matter. A physical change alters the form of a substance without changing its chemical composition, such as melting or freezing. A chemical change produces new substances through rearrangement of atoms, like burning or rusting. The three main states of matter are solids, liquids, and gases. Changes between these states are physical changes caused by temperature increases that provide kinetic energy to particles. The kinetic molecular theory describes particle behavior in the different states.
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
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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
General Chemistry 1 Module. Discussion on the different properties of Matter. Models of atom and history. Different orbitals and spdf notation. Identification of Atomic Mass, Weights, and Abundances of Isotopes.
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This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
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Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
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Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
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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.
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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.
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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.
11. Law of Conservation of Mass (1789)
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)
12. 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”
18. 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
19.
20. 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.
22. 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
23. 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.
26. 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).