Our Solar System

Why is Earth unique compared to other planets? (Hint: What does Earth have that other planets don't?)

• liquid water

• an atmosphere

• solid ground

• living things

What causes planets to orbit the sun and moons to orbit the planet?

• black holes

• gravitational force

• the asteroid belt

The gases around the planet make up its ________.

• atmosphere

• water supply

• food source

Asteroid or comet: Has a tail?

• asteroid

• comet

Which planet in our solar system is the largest?

• Saturn

• Earth

• Jupiter

Asteroid or comet: Can be very big and could hit Earth?

• asteroid

• comet

Which planet in our solar system has liquid water to support life?

• Mars

• Neptune

• Earth

Which planet in our solar system has the tallest volcano?

• Uranus

• Earth

• Mars

The sun is the ________ that the planets orbit around.

• star

• planet

• galaxy

The planets, moon, and sun are part of what system?

• universe system

• solar system

• galaxy system