Water Cycle
Air
Solids
Liquids
Gases

100

What is the scientific word for when water falls from the sky? Hint: The answer is not rain!
Precipitation

100

What gas do humans breathe in?
Oxygen

100

Matter is anything that takes up ________.
Space

100

What should you add to turn a solid into a liquid (to make it melt): heat or cold?
Heat

100

Can you see gases?
No, they are invisible.

200

What is it called when water gets warmed by the sun and changes into an invisible gas?
Evaporation

200

Does air take up space?
Yes

200

Do solids have a definite shape?
Yes

200

What is the liquid form of a popsicle?
Juice

200

True or False: Gases do not spread out to fill their container.
False. Gases do spread out to fill their container.

300

What is it called when water vapour rises up, cools down into water droplets, and forms clouds?
Condensation

300

What gas do humans breathe out?
Carbon dioxide

300

What is the solid state of water?
Ice (or snow)

300

If you pour water out of a glass onto the ground, what will happen to the shape of the water? Hint: Think of what happens to rain when it falls on the ground.
It will spread out to form a puddle.

300

True or false: air is a gas
True

400

What are four forms of precipitation?
1. hail 2. snow 3. sleet 4. rain

400

What is the name of the gas that makes your balloon fly away when you let go of it?
Helium

400

Are the molecules in a solid close together or far apart?
Close together

400

Name a liquid that is not clear.
Any liquid except water.

500

What are the four steps in the water cycle?
Evaporation, Condensation, Precipitation, Collection

500

Can you feel wind?
Yes

500

What is it called when a solid changes into a liquid? Hint: Think about what happens to your popsicle on a sunny day.
Melting

500

What is it called when a liquid changes into a gas? Hint: Think about water in a kettle.
Steam, vapour, or evaporation

500

What is it called when a gas changes into a liquid? Hint: think about water droplets on the outside of the window.
Condensation