The Water Cycle
What do we call the movement of water from the clouds back to the Earth's surface as rain, snow, or hail?
Precipitation
What happens to water when it freezes, unlike most other substances?
A. It becomes more dense B. It expands C. It shrinks in size
B. Unlike most other substances, water expands when it freezes.
At what temperature does water freeze at sea level?
100°C
What province is Miss Wu from?
Guangdong province
What is the term for water that flows over the ground and eventually returns to rivers, lakes, and oceans?
Runoff
1.What is the process called when ice is heated and starts turning into water?
2. Give an example
1. Melting
2. Ice turning into water;Butter melting on a hot pan Chocolate melting...
What does the "universal solvent" property of water mean?
It can dissolve many types of substances
How old is Miss Wu?
26
Name three types of precipitation
Rain, Snow, Hail, Sleet, drizzle, freezing rain etc
1.What is the process called when water is heated and starts turning into vapor?
2. Give an example
1. Evaporation
2. Drying clothes, Boiling water, drying hair etc
What is the percentage of
1. Oxygen
2. Nitrogen
in the Earth's atmosphere
what is Miss Wu's favourite colour?
Blue
1. What is the process called when water vapor in the air cools down and turns back into liquid water?
2. Give another example of this process
Condensation
Examples:
Fogging on a Cold Glass, bathroom mirror fogging, droplets on can of soda etc,
1.What is the process called when water vapor is cooled and starts turning into water?
2. Give an example
1. Condensation
2. clouds, Dew forming on grass,Water droplets on a cold drink,Foggy mirror after a hot shower
What percentage of water vapor is found in air?
(full answer required for all points)
water vapor is 1% along with carbon dioxide and other gases.
(full answer required for all points)
What is Miss Wu's favorite flower?
hydrangea （绣球花）