Solar System

When Earth spins, it turns around an imaginary line called an ____.

• rotation

• axis

• orbit

• ellipse

Which list shows the correct order of planets from the sun?

• Mercury, Venus, Earth, Mars

• Earth, Mars, Venus, Jupiter

• Mars, Venus, Earth, Saturn

• Uranus, Jupiter, Neptune, Saturn

Which is an object in the solar system that is a frozen mass of ice and dust?

• an asteroid

• a comet

• a moon

• a planet

What causes day and night?

• The Earth's rotation

• The Earth's revolution

• rotation

• revolution

The Sun is at the center of our solar system.  All the planets in the solar system orbit around the Sun. Which of the following planets has the longest orbit? 

• Mercury
• Earth
• Saturn
• Neptune

Which planet is the hottest?

• Earth
• Neptune
• Mercury
• Venus

What is the only planet known to contain life?

• Mars
• Earth
• Neptune
• Uranus

Which is the largest object in our solar system?

• Sun
• Jupiter
• Earth
• Pluto

The first planet of the solar system?

• Sun
• Venus
• Earth
• Mercury