Question

1. the earth is mostly covered in _. a. land b. rock c. water d. trees 2.) what is the meaning of the word vital? a. alive b. very important c. unnecessary d. known 3.) the earth creates thousands of gallons of new water every year. a. true b. false 4.) how many stages does the water cycle have? a. one b. two c. three d. four 5.) which of the following is an example of water vapor? a. a cloud b. steam c. a pond d. ice 6.) water rising up into the earths atmosphere as a gas is called _. a. evaporation b. condensation c. precipitation d. collection 7.) clouds are really made of _. a. steam b. cotton c. water droplets d. salt 8.) water droplets falling back to earth as rain, snow, sleet, or hail is called _. a. evaporation b. condensation c. precipitation d. collection 9.) water vapor turning back into liquid and forming clouds is called _. a. evaporation b. condensation c. precipitation d. collection 10.) water gathering in ponds, streams, rivers, lakes, and oceans is called _. a. evaporation b. condensation c. precipitation d. collection

Explanation:

1. Approximately 71% of the Earth's surface is covered by water.
2. The word "vital" means extremely important.
3. The Earth does not create new water; water is recycled through the water - cycle.
4. The water - cycle has three main stages: evaporation, condensation, and precipitation.
5. Steam is a visible form of water vapor.
6. The process of water rising up into the Earth's atmosphere as a gas is evaporation.
7. Clouds are made up of water droplets or ice crystals.
8. Water droplets falling back to Earth as rain, snow, sleet, or hail is precipitation.
9. Water vapor turning back into liquid and forming clouds is condensation.
10. Water gathering in ponds, streams, rivers, lakes, and oceans is collection.

Answer:

1. C. water
2. B. very important
3. B. false
4. C. three
5. B. steam
6. A. evaporation
7. C. water droplets
8. C. precipitation
9. B. condensation
10. D. collection