The document discusses the kinetic theory of matter and the behavior of particles in different states of matter. It addresses how the energy and spacing between particles changes as a substance transitions between solid, liquid, and gas states. It also covers intermolecular forces, density, thermal expansion, and how temperature and pressure influence boiling points. Review questions cover these concepts and related demonstrations are provided to illustrate key ideas about the phases of matter.

1. KineticTheory: How Particles Behave

2. Energy and space b/w particles The particles in Solids, Liquids, and Gases have different:

3. What do you do when you’re cold?

4. Vibrating

5. What happens when liquid is spilled?

6. Flowing around each other

7. How do gases behave?

8. Colliding randomly

9. Question 1:

10. Question 2: As a liquid becomes a solid, what happens to its particles?

11. Demo:

12. Question 3: What kind of phase change is occurring here?

13. Question 4: What kind of phase change is occurring here?

14. Solid

15. Liquid

16. gas

17. QUESTION 5: Compare gases and liquids: What is the difference in energy?

18. So if you have more energy, you can probably escape this:

24. Question 6: Which state of matter has the highest particle attraction?

25. Demo:

29. OPPOSITES ATTRACT:

30. OPPOSITES ATTRACT:

32. Hydrogen Bonds

36. Demo:

37. Question 7: What kind of bonds are formed in water that allow insects to walk on it?

38. Density: States of Matter

43. Question 8: Normally, what phase of matter is the most dense?

44. All Solids sink, right?

48. Demo:

52. Thermal expansion:

53. Why hold jar under hot water?

54. Expansion in solids:

55. Expansion in Solids:

56. Expansion in liquids:

57. Expansion in Liquids:

58. Expansion in gas:

59. Expansionin Gas:

60. Do all solids shrink when cooled?

61. Hydrogen Bonds

62. There are spaces!

67. What does the cold water absorb heat from?

68. Demo: Lower pressure leads to lower boiling temperature