form 1

What is a planet?

• a group of stars that forms a pattern in the sky
• a large ball of hot gases that gives off heat and light
• a large ball or rock or gas that moves around the sun
• a toy aliens play with

This picture shows the path Earth takes as it moves around the sun. What is the path called?

• a constellation
• a moon
• an orbit
• a planet

What is another word for rotate?

• orbit
• skip
• spin
• run

Which planet is the largest?

• Earth
• Jupiter
• Neptune
• the Sun

Which planet is between Mercury and Earth?

• Mars
• Uranus
• Venus
• the Moon

What is the name of this planet?

• EARTH

• MERCURY

• MARS

• VENUS

How long does Earth's orbit around the sun take?

• 365 and 1/4 days

• 360 days

• 24 hours

• 2 years

What is the difference between the inner planets and the outer planets?

• The outer planets are smaller than the inner planets 
• The inner planets are smaller than the outer planets
• The outer planets have more rocks than the inner planets
• the inner planets are heavier than  the outer planets

There is one star in our solar system.

• True
• False

There are _________ planets in our solar system.

• 6

• 7

• 8

• 9