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Assessment # 1: Tues, Feb 19th

Assessment # 1: Tues, Feb 19th. Understand that Heat is a form of energy that can be transformed and transferred Explain energy transformations using the particle theory of matter.   Understand the difference in the phases of Matter

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Assessment # 1: Tues, Feb 19th

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  1. Assessment # 1: Tues, Feb 19th • Understand that Heat is a form of energy that can be transformed and transferred • Explain energy transformations using the particle theory of matter.   • Understand the difference in the phases of Matter • Understand the difference between physical and chemical changes that occur • Understand the concept of mass, matter and energy • Understand the importance of heat in our lives, as well as how it is produced

  2. QUIZ: Tues, Feb 19th

  3. What’s the matter?

  4. Matter • Matter is anything that has mass and takes up space (Almost everything) • Examples: • You • Your clothes • Your lunch • Air • Water

  5. Can you think of some things that are NOT matter?

  6. Phases of Matter • All matter is present in one of the following phases: • Solid • Liquid • Gas

  7. SOLID A solid is matter that has definite size and shape. Example: Put a sneaker in a box. It stays the same.

  8. LIQUID A liquid takes the shape of any container. The particles in water are not as strongly attached as the particles in solids Example: Pour juice into a glass. The juice will take on the shape of the glass.

  9. Gases - Gas is matter that has no definite shape. Gases take the shape of whatever container they are in. Particles in gases are loosely attached to each other, or not attached at all Example: The air all around us is a gas.

  10. PHYSICAL CHANGES in Matter Changes in the structure or physical appearance of an object

  11. Chemical changes in matter cause “New- Matter” to be formed Chemical changes in matter can be made by doing the following: • Burning : example: mollasses • Rusting • Cooking

  12. CHEMICAL CHANGES

  13. Is this a solid, a liquid, or a gas?Can you find more than one type of matter in any of the pictures?

  14. Boiling Point The boiling point of a compound, solution, or element is defined as the temperature in which it moves from the liquid state to the gaseous state. The Boiling point is different for various substances

  15. Examples of Boiling Points

  16. Freezing Point The freezing point of a substance is the temperature below which a liquid turns into a solid.

  17. Some examples of Freezing points

  18. Review • Watch the 2 videos in “my links” which show demonstrations of liquid nitrogen. • Describe: • A) The changes in matter that occur • B) Energy transformations that you think may have taken place

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