Solar System

The inner planets are made of

• rock

• gas

• water

The outer planets are made of

• rock

• gas

• water

Earth is the _______ planet from the sun.

• first

• second

• third

• fourth

The ________ orbits the earth every 29 days.

• moon

• sun

• planet

• spaceship

Which of these has the strongest gravity?

• sun

• earth

• moon

True or False? The sun is the biggest star in the universe.

• true

• false

True or false? There is water on the moon.

• true

• false

What is the temperature of the sun?

• 10,000 degrees

• 5,000 degrees

• 100 degrees

• 15,000 degrees

What causes the ocean tides?

• the pull of the moon's gravity

• the pull of the earth's gravity

• the pull of the sun's gravity

The Earth rotates on its axis every ___________.

• 24 hours

• 365 days