Moon
Air and Water
Oceans and Climate
Weathering, Erosion, and Rocks
Day and Night
100
It takes 28 days.
What is the amount of time it takes the moon to orbit the earth one time?
100
It is nitrogen.
What is the gas that makes up most of the air we breathe?
100
The weather characteristics of an area over a long period of time.
What is climate?
100
All rocks are made up of these natural substances.
What are minerals?
100
The imaginary line through the center of Earth on which Earth rotates.
What is axis?
200
The part of the moon we can see gets bigger.
What is waxing?
200
A weather tool called a anemometer.
What is used to measure how fast the wind is moving?
200
A very large movement of water that is caused by winds and temperature differences.
What is a current?
200
A solid, nonliving material found in Earth.
What is a mineral?
200
A dark area that forms when objects block sunlight.
What is a shadow?
300
They are hollow marks or pits on the moon's surface.
What are craters?
300
It is called air pressure.
What is the pushing force of air called?
300
They affect climate.
What are ocean currents?
300
The process in which weathered rocks are picked up and moved away.
What is erosion?
300
A shadow will be the shortest.
What is midday?
400
It is a bright, round circle.
What is full moon?
400
Water that is a gas.
What is water vapor?
400
A large warm-water ocean current that flows along part of the eastern coast of the United States.
What is the Gulf Stream?
400
The breaking down of rocks on Earth's surface into smaller pieces.
What is weathering?
400
The sun reaches the horizon in the west.
What is sunset?
500
They are new, first quarter, full, and last quarter.
What are the four main phases of the moon?
500
97% of Earth's water.
What are oceans?
500
They move away from the equator.
What are warm-water currents?
500
As they carry away rocks, they leave a valley behind.
What are glaciers?
500
Shadows are long and the sun is low in the eastern sky.
What is morning?
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