Planet Power
Asteroid Adventure
Comets and Space Rocks
Planet Order
Space Scientists
100

These large objects orbit the sun 

What are planets

100

These are rocks that orbit the Sun and can be very small or large.

What are asteroids

100

These objects contain dust, small rocks, ice, and frozen gases and orbit the Sun.

What are comets?

100

This planet is closest to the Sun.

What is Mercury?

100

These are large planets made mostly of gas.

What are gas giants?

200

This is the number of known planets in our solar system 

What is eight

200

This area between Mars and Jupiter contains many asteroids.

What is the asteroid belt?

200

These are chunks of rocky, metallic, or icy material from asteroids or comets.

What are meteoroids?

200

This planet is third from the Sun and is our home.

What is Earth?

200

These are the four small, rocky planets closest to the Sun.

What are Mercury, Venus, Earth, and Mars?

300

This is another name for the four planets closest to the Sun

What are the inner planets?


300

This planet is just inside the asteroid belt.

What is Mars?

300

A meteoroid glows as it enters Earth's atmosphere. We call it this.

What is a meteor?

300

This is the fourth planet from the Sun.

What is Mars?

300

This planet is famous for its beautiful rings.

What is Saturn?

400

These are the four planets farthest from the Sun.

What are the outer planets?


400

This planet is just outside the asteroid belt.

What is Jupiter?

400

A meteor that reaches Earth's surface is called this.

What is a meteorite?

400

This is the largest planet and the fifth from the Sun.

What is Jupiter?

400

A meteoroid, meteor, and meteorite describe a space rock at these three stages: in space, glowing in the atmosphere, and reaching this place.

What is Earth's surface?

500

These planets are small and have rocky surfaces.

What are terrestrial planets

500

Asteroids are found orbiting this star.

What is the Sun?

500

This bowl-shaped dent can be left when a meteorite hits a surface.

What is a crater?

500

Name all eight planets in order, starting with the one closest to the Sun.

What are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune?

500

A small rocky planet is called terrestrial. A large planet made mostly of gas is called this.

What is a gas giant?