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 country is teacher John from?
Ireland
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 water is heated and starts turning into vapor?
2. Give an example
1. Evaporation
2. Drying clothes, Boiling water, drying hair etc
What does the "universal solvent" property of water mean?
It can dissolve many types of substances
How old is teacher John?
34
Name three types of precipitation
Rain, Snow, Hail, Sleet, drizzle, freezing rain etc
1.What is it called when a solid changes directly into a gas without becoming a liquid first?
2. Give an example
1. Sublimation
2. An example of sublimation is dry ice (solid carbon dioxide). When exposed to air, it changes directly from a solid to a gas without becoming a liquid first.
What is the percentage of
1. Oxygen
2. Nitrogen
in the Earth's atmosphere
what is teacher John's favourite colour?
Yellow
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 do we call the process when a gas changes directly into a solid without becoming a liquid first?
2. Give an example
1. Deposition
2. An example of deposition is frost forming on a cold window. Water vapor in the air changes directly into ice without becoming liquid first.
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 teacher John's favorite fruit?
Banana