UP6-UNIT4-LESSON 4- WATER VAPOR

What percentage of the world is water?

• Over seventy percent

• Fifty percent

• Thirty percent

• Ninety percent

Why can't we drink most of the water on Earth?

• Because it is mostly ocean water

• Because it is frozen

• Because it is polluted

• Because it is underground

What is the first stage of the water cycle?

• Evaporation

• Condensation

• Precipitation

• Collection

What happens during condensation in the water cycle?

• Water vapor turns into small water droplets

• Water turns into vapor

• Water droplets fall back to the earth

• Water is collected in rivers

What is precipitation?

• When water droplets fall back to the earth

• When water vapor turns into gas

• When water is collected in oceans

• When water evaporates

Why shouldn't we drink rainwater directly?

• Because sometimes it isn’t clean

• Because it is salty

• Because it is too cold

• Because it is too hot

What is the final stage of the water cycle?

• Collection

• Evaporation

• Condensation

• Precipitation

What makes the water cycle happen?

• The wind

• The water vapor

• The sun

• The water cycle

Which stage comes after evaporation?

• Collection

• Condensation

• Precipitation

• Melting

The sun helps water to evaporate.

• true

• false