The Solar System - Review

The Sun and the group of objects that move around it.

• Universe

• Galaxy

• Solar system

• World

According to the model developed by Copernicus, what causes day and night on Earth?

• Earth rotates on its axis.

• Earth revolves around the sun.

• Planets orbit the sun in elliptical paths.

• All parts of the Solar System move in circular paths.

Which option below lists the planets in the correct order from the Sun?

• Mars, Venus, Earth, Mercury, Jupiter, Saturn, Uranus, Neptune

• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

• Mercury, Earth, Venus, Mars, Jupiter, Saturn, Uranus, Neptune

• Mercury, Venus, Earth, Mars, Saturn, Jupiter, Uranus, Neptune

What are the inner planets?

• Mercury, Venus, Earth, Mars
• Jupiter, Saturn, Uranus, Neptune
• Mercury, Venus, Earth
• Earth, Mars, Jupiter, and Saturn

What are the outer planets?

• Mercury, Venus, Earth, Mars
• Mercury, Venus, Earth
• Jupiter, Saturn, Uranus, Neptune
• Mars, Jupiter, Saturn, Uranus 

The _______ planets are rocky.

• inner

• outer

The outer planets are mostly made of ________. 

• Rock
• Water
• Pizza
• Gas

The planets _______ around the sun. 

• Revolve
• Rotate 

A small rocky object that orbits the sun.

• Planet

• Comet

• Solar System

• Asteroid

Which characteristic is common among all the planets?

• Mass

• Diameter

• Shape

• Composition