Show:
Terms
Evaporation/Condensation
Convection Current
Uneven Heating
The Pressure is On
100
When water changes from a liquid to a gas
What is evaporation?
100
T or F Evaporation only happens when water is heated to high temperatures. Why do you say this?
The answer is false. Evaporation occurs at any temperature.
100
Wind moves from areas of __________ pressure to areas of __________ pressure.
it moves from areas of high pressure to low pressure
100
What heats up faster? water or soil
soil
100
What is the whole layer of air covering the earth called?
atmosphere
200
When water changes from a gas back to a liquid
What is condensation?
200
How are dew and frost similar? How are they different?
Dew and frost both condense water vapor from the air. Dew is liquid and frost is solid.
200
What is the source of energy that causes the wind to blow?
solar energy, Sun
200
What cools down faster? water or soil
soil
200
Where is atmosphere the densest? top of mountain or sea level Why?
Sea level because there is more atmosphere pushing down on you, so it is more compressed and denser.
300
Frozen condensation can be called __________.
What is frost?
300
Why does a hair dryer make hair dry faster?
there is more air movement, the temperature is higher
300
In our experiment with the vial why did the water circulate the way it did?
The cold water is denser than the room temperature water and so it sinks to the bottom of the vial. When the hot water is next to the cold water, the cold water rises because it becomes warmer and less dense. When it gets to the top, it cools becomes denser and begins to sink again.
300
What variables affect how hot a material will get when solar energy shines on it?
length of exposure intensity of solar energy color of material properties of material
300
What causes atmospheric pressure and what is it?
The force exerted by the weight of air molecules in Earth's atmosphere. The mass of air molecules pulled to Earth by gravity causes the pressure.
400
The freezing point of water is ______________.
What is 0 degrees Celsius or 32 degrees Fahrenheit?
400
How can you turn liquid water into water vapor faster?
transfer energy to the water, increase the surface area of the water, heat the water
400
Wind during the day at the ocean flows in what direction?
What is counterclockwise?
400
Why is the tropics hotter that the poles?
The sun is more concentrated at the tropics and spreads over a larger area toward the poles.
400
Why does a pag of chips puff up when you go from sea level to a high mountain pass?
Air is closer together or more compressed at sea level where the bag was bought. As you go up the mountain the air molecules expand to have the same density as the surrounding air.
500
Uneven heating of the earth's surface by the sun causes ______________.
What is wind?
500
How does temperature affect the amount of water vapor in the air?
warm air holds more water vapor than cool air
500
Wind at night over the ocean flows in what direction
What is a clockwise direction?
500
What happens to air molecules when they heat up?
They rise and expand.
500
Why does a sealed water bottle crush when you go from a high elevation to a low elevation?
Where the bottle was sealed the pressure was lower and the molecules were farther apart. As you go down the mountain the air pressure outside the bottle increases and the air that was inside the bottle now takes up a smaller area so the bottle compresses.