Earth
Sun
Moon
This and That
Vocabulary
100
This causes the Earth's seasons.
What is the 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 28 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 "rotation"?

200
The shape of the Earth
What is a "sphere"?
200

The sun is a big fiery ball of gas called a...

What is a "star"?

200

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

What is "lunar"?

200

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

What is 24 hours?

200

This imaginary line goes from the North Pole to the South Pole of the Earth.

What is the "axis"?

300
The Earth takes this long to revolve around the sun.
What is 365 1/4 days?
300
The sun rises in this direction.
What is the "east"?
300

The bowl shaped holes covering the moon are called...

What is a "craters"?

300

This object is used to study far away objects in the sky.

What is a "telescope"?

300

This term is used to describe the phase of the moon when we see all of the lit side.

What is "full moon"?

400
When it is winter in North America, it is this in Australia.
What is "summer"?
400

This occurs when the moon moves between the sun and the Earth, blocking some of the the sun's light.

What is a "solar eclipse"?

400

During this process, the moon moves through the Earth's shadow, and cannot be seen for a short time.

What is a "lunar eclipse"?

400

The sun appears to move across the sky because of this reason.

What is "earth's rotation"?

400

This satellite has no atmosphere. 

What is "the moon"?

500
The imaginary line horizontally around the middle of the Earth.
What is the "equator"?
500

The rays of the sun strike North America in the summer in what way?

What is "directly"?

500

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

What is the "ocean tide"?

500

This type of energy can be transferred from outer space and into the earth. 

What is "solar energy"?

500

The core of the earth is made up of...

What is the "solid metal"?