What is the source of energy that controls the weather, atmosphere, and water cycle?
the sun
In which layer of the atmosphere does weather occur?
troposphere
True or false: Land heats up and cools faster than water.
True
True or False: heated air is more dense than cooler air.
False
Once the sun heats air near the ground, how does that air move through the atmosphere?
convection currents
What gas makes up most of Earth's atmosphere?
nitrogen
Where should the ozone layer be found?
stratosphere
Why is the equator warmer than the poles?
It receives more vertical rays from the sun.
Besides water (and anything in the water), what do oceans move around Earth?
heat
What makes wind move faster?
greater difference in air pressure
What happens to the sunlight that does not reach Earth's surface?
It is reflected or absorbed.
Why are some layers of Earth's atmosphere warmer than others?
Some layers have gases absorb heat.
Why does Wichita have colder winters and warmer summers than San Francisco?

San Francisco is closer to the ocean.
What phenomenon results in the eastern Pacific Ocean being warmer than normal, jet streams changing, and the Midwest to be drier than average?
El NiƱo
Why do winds on Earth appear to curve?
Earth rotates (Coriolis Effect)
What do greenhouse gases do?
trap heat
Name a greenhouse gas.
carbon dioxide (CO2); methane (CH4); ozone (O3)
In terms of pressure, how does a sea breeze form?
Land heats more than water during the day. The air moves from the high pressure over the colder ocean toward the lower pressure over the land.
How does the rain-shadow effect work? You may draw a picture if you wish.

What are two effects that cities have on weather?
The concrete in cities heats the air.
Pollution traps heated air.
Draw and label the graph of the temperature changes in the atmosphere. Label each layer and the axes.

How does air pressure change as you go up in the atmosphere? Why does it change this way?
It decreases because there are less molecules above. Also, the ones above push down on the ones below.
Name two factors that affect the movement of ocean currents.
water density, salinity, Earth's rotation, ocean topography
How do ocean currents affect the land they touch?
Warm currents warm the land and cold currents cool the land. They make the land moister than areas further inland.
What is one advantage and one disadvantage of the greenhouse effect?
Advantage: keeps Earth warm enough for life
Disadvantage: can cause climate change