The Sun
The Earth
The Moon
The Stars
100

The sun is a kind of this

What is a star?

100

The Earth takes this long to spin once

What is 24 hours?

100

The moon has its own

What is gravity?

100

A grouping of stars is called this

What is a constellation?

200

This is the third planet from the sun

What is Earth?

200

The Earth takes this long to travel around the sun

What is 365 days?
200

The moon has an effect on 

What is the ocean?
200

This star was used to guide people long ago

What is the North Star?

300
As the sun rises and sets it cause shadows on Earth to appear 

What is longer?

300

The Earth receives the most sunlight during this month

What is July?

300

The moon causes this to happen on earth

What is the tide?

300

This star is nearest to Earth

What is the sun?
400

This kind of sunlight causes the winter weather

What is indirect sunlight?
400

This part of the Earth effects the seasons

What is the axis or tilt of the Earth?

400

The moon does this around the earth

What is revolve?

400

The stars appear to move in the sky due to this

What is Earth's rotation?
500

This tool used the sun and shadows to tell time

What is a sun dial?

500

This part of the Earth stays warm year round

What is the Equator?

500

The moon causes low tide commonly at this time

What is 12:00?

500

This object appears to be a star, but is some else

What is a planet, comet, or plane?