Page 100 - Science Course 1 (Book 2)
P. 100
Mo9-L2a: What is Water Cycle?
The Sun provides the energy that drives the water Thermal energy is released or absorbed when water
cycle and moves water from place to place. changes state.
Water can change state to a gas or a solid and then
back again to a liquid.
Thermal Energy Released
Evaporation is the process by which a liquid, such as The process by which a gas changes to a liquid is
water, changes into a gas. condensation.
Transpiration is the process by which plants release Moisture that falls from clouds to Earth’s surface is
water vapor through their leaves. Some water vapor precipitation.
also comes from organisms through cellular
respiration.
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