1. States of Matter

2. YESNO 1. I can describe how atoms move in a solid, liquid, and gas 2. I can describe the speed/energy of the atoms in a solid, liquid, and gas. 3. I can explain how the distance between atoms is related to the states of matter. 4. I can indicate whether or not each state of matter has a definite shape and volume Self-Check © 2013 S. Coates

3. States of Matter Solids: Particles are tightly packed together and DO NOT move past each other. They vibrate in place. © 2013 S. Coates

4. States of Matter Examples of Solids: © 2013 S. Coates

5. States of Matter Solids have a definite SHAPE Solids have a definite VOLUME © 2013 S. Coates Example—Marble Shape = Sphere Volume = can be found using water displacement

6. States of Matter Liquids: Particles are still tightly packed together and they SLIDE move past each other. © 2013 S. Coates

7. States of Matter Examples of Liquids: © 2013 S. Coates

8. States of Matter Liquids DO NOT have a definite SHAPE, they take the shape of their container. Liquids have a definite VOLUME © 2013 S. Coates Example—Orange Juice Shape = None, it takes the shape of the glass. Volume = can be found using a beaker or graduated cylinder.

9. Phases of Matter Gases: Particles are not tightly packed together, and have so much energy they slip past each other quickly. © 2013 S. Coates

10. Examples of Gases: © 2013 S. Coates States of Matter

11. Gases DO NOT have a definite SHAPE Gases DO NOT have a definite VOLUME © 2013 S. Coates Example—Water Vapor Shape = Not definite. Volume = Not definite. Gases are usually always expanding.

12. States of Matter Plasma: Particles are moving so quickly it is hard to see what they are actually doing. © 2013 S. Coates

13. States of Matter Examples of Plasma on Earth: © 2013 S. Coates

14. States of Matter Energy is what changes a state of matter. Argon BOILS at -186°C, so when you hold it at room temperature you can see ALL 3 states at the same time. © 2013 S. Coates

15. States of Matter Is ENERGY being ADDED or TAKEN AWAY in this phase change: © 2013 S. Coates SolidLiquid ADDED The added energy has caused the chocolate particles to speed up. Before they were vibrating in place, now they are moving fast enough to slip past one another. ADDED The added energy has caused the chocolate particles to speed up. Before they were vibrating in place, now they are moving fast enough to slip past one another.

16. States of Matter Is ENERGY being ADDED or TAKEN AWAY in this phase change: © 2013 S. Coates LiquidGas ADDED The added energy has caused the water particles to speed up. Before they were moving fast enough to slip past one another, now they have enough energy to break away from one another and expand.

17. States of Matter Is ENERGY being ADDED or TAKEN AWAY in this phase change: © 2013 S. Coates LiquidSolid Taken Away Taking away energy from a rain drop slows the water molecules down so that they no longer slide past one another.

18. States of Matter Let’s summarize: © 2013 S. Coates PhaseMotion of ParticlesSpeed of Particles Solid Particles vibrate in placeSlow Liquid Particles are close, but can slide past one another Medium Gas Particles are constantly expandingFast Plasma UnknownFaster than we can see

19. States of Matter Let’s summarize: © 2013 S. Coates StatesDefinite Shape? Definite Volume? Solid Liquid Gas Plasma YES NO

20. Self-Check © 2013 S. Coates YESNO 1. I can describe how atoms move in a solid, liquid, and gas 2. I can describe the speed/energy of the atoms in a solid, liquid, and gas. 3. I can explain how the distance between atoms is related to the states of matter. 4. I can indicate whether or not each state of matter has a definite shape and volume Answer the following questions: 5. What state of matter has atoms that move by vibrating? _______________ 6. What state of matter has a definite volume but not a definite shape? __________ 7. When a gas turns into a liquid, energy is ____________________.