1. Cycles of Matter

2. Matter Matter is recycled in an ecosystem, unlike energy. What is it? Anything that has mass and takes up space.

3. WATER RECYCLES

4. Water Cycle Condensation

5. The Water Cycle condensation

6. Water Cycle It is a continuous process by which water moves from the Earth’s surface to the atmosphere and back. It includes the processes of – Evaporation – Condensation – Precipitation

7. Evaporation Occurs when energy from the sun heats water causing the water molecules to become so active that some of them rise into the atmosphere as vapor.

8. Evaporation Liquid  Gas add heat energy

9. Condensation Gas  Liquid take away heat energy

10. Condensation Condensation is the process of water changing from water vapor to tiny droplets of water.

11. Precipitation liquid or solid Rain, snow, sleet or hail

12. What is a water molecule? Two hydrogen atoms and one oxygen atom. It is written as H 2 0.

13. Ice cube – solid phase

14. Water – liquid phase

15. Water vapor - gas phase

16. When heat energy is added to water molecules, they move faster and further apart.

18. Solid form of water

19. A drop of liquid water

20. Vapor form of water

22. Do the water molecules change what they look like when they change phase? No, they are still H 2 O! The water molecules only change in speed and the distance from each other.

23. Water Cycle Condensation