1. Today we will learn about; to create a concept about some mechanical properties of solid bodies, liquids, gases 1

2. What is matter ? What is matter ? Matter is anything that can take up space Chumbler - Properties of Matter2

3. States of Matter The Four States of Matter Four States  Solid  Liquid  Gas  Plasma 3

4. States of Matter Basis of Classification of the Types  Based upon particle arrangement  Based upon energy of particles  Based upon distance between particles 4

5. Solids definite shape definite volume Particles of a Solid Tightly packed together Vibrate against one another Do NOT move from place to place Particle Movement Examples 5

6. Luquids definite shape definite volume Luquids definite shape definite volume Particles of a luquid Particles of a luquid - close together -vibrate past one another - little movement Particle Movement Examples 6

7. Gases definite shape definite volume Particles of a Gas -N-Not close together very spread out -V-Vibrate freely past one another Particle Movement Examples 7

8. Phase Changes Evaporation = Condensation = Melting = Freezing = Sublimation = Liquid -> Gas Gas -> Liquid Solid -> Liquid Liquid -> Solid Solid -> Gas

9. States of Matter Plasma Particles The negatively charged electrons (yellow) are freely streaming through the positively charged ions (blue ). 9

10. States of Matter 10

11. States of Matter The Four States of Matter The Classification and Properties of Matter Depend Upon Microscopic Structure  Particle arrangement  Particle energy  Particle to particle distance 11