Evaporation
When the sun heats up, liquid water turns from a liquid into a gas called water vapor.
What is evaporation?
What is is called when water vapor (a gas) changes into water droplets (a liquid).
What is condensation?
Any moisture that falls to the ground from clouds is called _____________?
What is precipitation?
___________- is precipitation that reaches the earth and flows downhill over the land.
What is runoff?
How are animals a part of the water cycle?
animals need clean water to survive
Evaporation turns liquid water into a gas called _________.
What is water vapor?
During condensation water is changed from a gas to a ________.
What is a liquid?
What powers the water cycle?
the sun
Infiltration is the process that forms _______________.
What is groundwater?
The amount of space between soil particles is called ________________.
porosity
What change of state occurs during evaporation?
liquid to gas
The tiny water droplets in the sky form ____________.
What are clouds?
infiltration
What process forms clouds?
condensation
How easily water moves through soil is called _____________.
permeability
When water evaporates, it becomes an invisible gas in the ____________.
atmosphere
________ temperatures cause condensation of water vapor.
What are cooler temperatures?
What are the three steps of the water cycle?
evaporation, condensation, precipitation
What percent of all water on the earth is freshwater?
3%
The _______ is the movement of water from the ground to the air, and back to the ground.
water cycle
Most water is found in ____________. What percent?______
oceans; 97%
Explain how water falls out of the clouds.
When the water droplets become too heavy for the cloud to hold, they fall to the earth as precipitation.
Most freshwater is found in ________________.
glaciers
Name two ways humans pollute.
Answers will vary:
dump oil
litter
chemical spills
Water vapor released from plants and soil by energy from the sun is called ______________.
transpiration