The steps!
What is it called when the sun's heat causes liquid water to turn to water vapor?
Evaporation
What causes evaporation to happen?
The sun's heat
Heat is applied to solid ice. What does it turn into?
Liquid water
What is the main difference between salt water and freshwater?
Salt
Lost Points
Lost Points
What is it called when water falls from clouds in the forms of rain, sleet, snow, or hail?
Precipitation
What does water vapor stick to in order to form a cloud?
Dust
Heat is applied to liquid water. What does it turn into?
Water vapor
What is the world's largest freshwater lake?
Lake Superior
What is it called when water collects in one spot?
Collection
Where can I see collection?
A lake.
Cold is applied to liquid water. What does it turn into?
Ice
About (within a half billion years) how old is earth's water?
Earth's water is about 3.5 billion years old.
What is it called when water vapor turns back into liquid water?
Condensation
Where can I see surface runoff?
A river, etc.
Liquid water
How do scientists think earth's water arrived in the first place?
It arrived on meteorites and asteroids.
What is it called when water moves over parts of the earth?
Surface runoff
How can I prove water vapor is in the air, even if I can't see it?
Clouds, etc.
Water vapor rises in the atmosphere. What happens?
It cools and condenses into liquid water.
9, 9.5 or 10 feet