Solar System

Earth and the other planets closest to the Sun are made mostly of _______

• gas
• metal
• water
• rock

The moon is a natural  ______ of Earth.

• comet
• axis
• satellite
• space probe

Tags

CCSS.RI.8.7

CCSS.RI.9-10.7

CCSS.RL.7.7

CCSS.RL.8.7

CCSS.RL.9-10.7

Earth's ________ on its axis causes day and night.

• rotation
• revolution
• phase
• comet

Tags

CCSS.RI.8.7

CCSS.RI.9-10.7

CCSS.RL.11-12.8

CCSS.RL.8.7

CCSS.RL.9-10.7

One kind of  _______ is the crescent Moon.  

• axis
• asteroid
• phase
• space probe

One full orbit of an object around another object is called a ________.

• axis
• rotation
• revolution
• satellite

The __________ has planets, moons, comets, and asteroids.

• solar system
• earth
• rotation
• United States

One of the main differences between the outer and inner planets is __________.

• The inner planets all have water
• the inner planets are much bigger than the outer planets
• the outer planets are gas planets
• the outer planets have rings, and the inner planets don't

Where is the asteroid belt found?

• between earth and mars
• Between Uranus and Neptune
• Between Mercury and Venus
• Between Mars and Jupiter

Select the order from smallest to largest.

• Sun, Milky Way, solar system, universe
• Sun, Milky Way, universe, solar system
• Sun, solar system, Milky Way, universe
• Sun, solar system, universe, Milky Way

Which factor makes Earth different from all the other planets in the solar system in its ability to support life? 

• The Earth is exposed to rays from the sun. 
• The Earth has only one moon that orbits around it. 
• The Earth rotates in an elliptical orbit around the sun. 
• The Earth has a breathable atmosphere.