Vocabulary
The Moon
Stars
Earth's Movement
Extra, Extra!
100
What is the spinning of Earth around its axis called?
Rotation
100

As the moon orbits around Earth, what side of the moon faces Earth?

We always see the same side of the moon.

100
What is the biggest star in our Solar System?
The sun!
100
Why does day turn to night on Earth?
Because Earth rotates from East to West
100

This system is made up of solar systems

Galaxy

200
What is the imaginary line around which Earth rotates?
The Earth's axis
200
How long does it take the moon to orbit the Earth?
Around 29 days
200
What is a clue that the Earth is moving?
You see different stars during different times of the year. (Other answers acceptable as well.)
200

This is why you can't see blackholes

Because light cannot escape 

300
What is the lighted part of the moon as it appears from Earth?
Moon phases
300
What is the phase of the moon called when it looks like half the moon is lit up?
Quarter moon (because we only see half of the moon, the other half is facing away from us.....so if we are only seeing half of the moon and of that half we only can see half, then we are really only seeing a quarter of a moon!)
300
Why do we see different stars during different seasons?
Because Earth is facing a different part of the sky at night. (Due to the Earth revolving around the Sun.)
300
How long does it take the Earth to rotate?
24 hours or 1 day
300

What spacecraft was first to leave the solar system?

Voyager 1

400

What is it called when an object moves around another object?

Orbit

400
Describe why the moon has different phases.
It depends on where the moon is in its revolution around earth, because the moon only reflects the light of the sun.
400

Scientists use these to represent objects or systems that are too large or small to observe directly.

Models

400
How long does it take the Earth to revolve?
1 year, or 365 1/4 days
400
Why does it look like the sun rises in the East and sets in the West?
Because the Earth is rotating counterclockwise.
500
The __________ of the Earth causes seasons.
Tilt
500
What phase of the moon will it be when the moon is between the Earth and the Sun?
A New moon, because the light is reflecting on the side of the moon that you cannot see from Earth.
500
What are named patterns of stars?
Constellations
500
Explain how the Earth, the moon and the sun move through space.
The Sun stays at the center of our universe. The moon orbits the Earth. The Earth rotates on its axis and revolves around the Sun.
500
At what time of the day is your shadow the shortest? Why?
In the middle of the day because the sun is directly overhead.
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