Earth
Sun
Moon
This and That
Vocabulary
100

This causes the Earth's seasons. (give the number as well!)

What is the 23.5 degree tilt of the Earth?

100

The word "solar" refers to this object.

What is the "sun"?

100

It takes this long for the moon to revolve completely around the Earth.

What is 27 days or about a month?

100

This keeps the Earth and moon in their orbits.

What is "gravity"?

100

This word describes the Earth spinning continuously.

What is "rotating"?

200

The shape of the Earth

What is a "sphere"?

200

The sun is called this.

What is a "star"?

200

Solar refers to the sun. This term refers to the moon.

What is "luna/lunar"?

200

It takes this long for the Earth to complete on full rotation.

What is 24 hours?

200

Why are planets spaced out? 

What is the "to avoid getting destroyed by other orbiting planets"?

300

The Earth takes this long to revolve around the sun.(Give in days and months)

What is 365 1/4 days? 12 months

300
Explain why planets revolve around the sun. 

What is the sun's gravitational field caused by it's mass. 

300

During this phase of the moon, we can see no light from the moon.

What is a "new moon"?

300

What order of magnitude is 2500?

What is a "4"?

300

If a planet is taken out of a solar systems gravitational field it is now known as an _____. 

What is "exoplanet"?

400

When the earth is closer to the sun it is known as this? 

What is "perihelion"? 

400

Can there be more than one star in a solar system? Explain. 

What is no because if there were two, they would have too much of a gravitational pull towards one another that they would crash into one another. 

400

The "light" from the moon comes from this. Explain why we see different phases. 

What is the sun and the moon's orbit causing us to see different parts of the moon's face. 

400

Describe Kepler's 1st Law. 

What is the orbits occur in non perfect circles known as ellipses?

400

Is a planet a satellite? Explain. 

What is "yes because it orbits around the sun"?

500

When the Earth is closer to the sun it is traveling __________ because of ___________. 

What is the faster because of a stronger gravitational pull?

500

Why does the sun hit the Earth in different ways?

What is the tilt causes the rays to hit the earth at different time frames due to different distances?

500

The moon affects this part of the Earth, changing it daily on our beaches.

What is the "ocean tide"?

500

Write 10,000 years in scientific notation. 

What is "1.0*10^4"?

500

123 km is ________m. 

What is the "0.123m"?

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