1) What is the process where liquid water turns into gas? a) Condensation b) Evaporation c) Precipitation d) Collection 2) What are clouds made of? a) Only air b) Water droplets c) White smoke d) Cotton candy 3) What is it called when water falls from the sky as rain or snow? a) Precipitation b) Evaporation c) Transportation d) Filtration 4) Which energy source powers the water cycle? a) Electricity b) Wind c) The Sun d) Batteries 5) When water vapor cools down and turns back into liquid, it is called... a) Freezing b) Condensation c) Melting d) Boiling 6) Where is most of the Earth's water stored? a) In rivers b) In the clouds c) In the oceans d) In underground tanks 7) Plants also release water vapor into the air. What is this called? a) Respiration b) Transpiration c) Perspiration d) Inspiration 8) Is the amount of water on Earth always changing or does it stay the same? a) It is always increasing b) It is always decreasing c) It stays the same d) It disappears every 100 years 9) What is the solid form of precipitation? a) Rain b) Snow c) Fog d) Dew 10) What happens during "Collection"? a) Water disappears b) Water turns into ice c) Plants drink all the water d) Water gathers in oceans, lakes, and rivers

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