1. Water Cycle

2. Sun warms ocean water causing it to EVAPORATE. Water vapor CONDENSES to form clouds. Clouds become very heavy before beginning to PRECIPITATE. Precipitation collects in rivers, lakes, and oceans. The sun warms ocean water 3. The suns energy is necessary to power the water cycle. 4. The sun warms the water in the ocean, causing it to change from water (liquid) to water vapor (gas). 5. Once the warm gas hits the cooler air it changes back into a liquid and forms a cloud. 6. Tiny water droplets bounce around in the cloud. As they hit each other, they stick together and become larger. 7. Once they become so heavy, the cloud can no longer hold them. It begins to precipitate. 8. Rain Snow Sleet Hail 9. Rivers Lakes Oceans 10. The process by which water absorbed by plants (usually through the roots) is evaporated into the atmosphere from the plant surface (principally from the leaves). 11. Then what? Right! It starts all over again! That is why it is called a cycle. 12. Sun warms ocean water causing it to EVAPORATE. Water vapor CONDENSES to form clouds. Clouds become very heavy before beginning to PRECIPITATE. Precipitation collects in rivers, lakes, and oceans. The sun warms ocean water 13. Materials Directions1. 2 clear plastic cups Partly fill the plastic cups with water so that they2. Felt markerboth have the same level of water. Mark the levels3. Clear plastic wrap with the marker. Seal one of the cups with plastic4. Waterwrap. Leave it for a day. Look at both cups andmark where the water levels are. Do this for a fewmore days, marking the levels each day andnoting any change. Your child will notice that thewater level goes down in the cup that has nocover. Where does the water go? Talk about thewater disappearing and explain what evaporationis.