Show:
Earth
Sun
Moon/Stars
This and That
Vocabulary
100

What are 2 things that cause the Earth's seasons.

What is the tilt of the Earth and its revolution around the sun.

100

How big is the sun? 

It's a medium sized star.

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

What star appears the largest from Earth and why?

The sun because it is the closest.

200
The sun is a big fiery ball of gas called this.
What is a "star"?
200

Explain how the moon emits light.

It is reflecting light from the sun.

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

Why does the moon have so many craters on its surface? 

It has a very weak/no atmosphere. 

300

What vocabulary word describes why we can't see stars during the day? 

Rotation because Earth spinning on its axis causes day and night. 

300

This explains why we see specific constellations during certain times of the year. 

Earth's revolution around the sun. 

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

Name a way other stars are different from the sun.

The sun is in our solar system and all other stars are outside our solar system. 

400

Explain the motion of the moon.

The moon is revolving around Earth and the Earth and moon are revolving around the sun.

400
The sun appears higher in the sky during this time of year because of the tilt of the earth.
What is "summer"?
400

What is the composition of the sun? Name 2

Helium and Hydrogen

500

What is the composition of the Earth? Name at least 2.

Iron, oxygen, silicon, magnesium

500

How much larger is the sun than the Earth? 

109x

500

Which star appears to stay in the same place in the night sky?

The North Star AKA Polarius

500

True or False: The sun is moving across the sky

False: The Earth is rotating which gives the appearance that the sun is moving across the sky.

500

What causes some stars to appear to stay in the same place? 

Earth's rotation on its axis.