Earth in Space
Gravity and Motions
Phases, Eclipises, and Tides
Earth's Moon
100
This is another term for spinning.
What is rotation?
100
This term explains why things that go up must come down.
What is gravity?
100
This is the time period it takes for the moon to go through all of its phases.
What is 29.5 days or about 30 days?
100
These areas on the moon were described as “seas.”
What are marias?
200
Every 24 hrs the Earth spins on its axis. This time period is known as this.
What is a day?
200
This term is used to explain why things in motion stay in motion until something else stops it. This was Newton’s first law of motion.
What is interia?
200
This term describes when someone is completely covered by the total eclipse.
What is umbra?
200
These created the craters on the moon
What are meteroids and asteroids?
300
As the Earth spins on its axis and revolves around the sun, these are the results.
What are the seasons?
300
These two factors explain why the Earth stays in orbit around the sun.
What is gravity and inertia?
300
The change in relative position of the sun, the Earth and the moon cause these three things
What are phases of the moon, tides, and eclipses?
300
This is the name of the most recent theory that explains the formation of the moon.
What is the collision-ring theory?
400
These two days result when the sun is at its highest point north or south of the equator
What are the solstices?
400
These two factors determine the strength of gravity between two objects.
What is distance between two objects and mass?
400
This type of eclipse occurs when the full moon passes in front of the Earth’s shadow.
What is lunar eclipse?
400
This caused the material that circled the earth to combine and form the moon.
What is gravity?
500
This word describes the shape of Earth’s orbit around the sun.
What is elliptical?
500
This measures the force of gravity on an object
What is weight?
500
The neap tides occur during these two phases of the moon.
What are the first and third quarters?
500
The moon’s diameter is what fraction of the Earth’s diameter.
What is 1/4, 25%, or one-fourth. (Anyone of these)
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