Grade 3 SST Revision

When Earth spins, it turns around an imaginary line called

• 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

The hottest planet is 

• Venus
• Earth
• Mercury
• Mars

This is no longer a planet

• Neptune

• Sun

• Pluto

• Moon

Which movement creates day/night?

• rotation
• revolution

Which movement creates years?

• rotation
• revolution

Which is the only planet known to contain life?

• Mars

• Earth

• Neptune

• Uranus

What characteristics do Earth and Venus share?

• They rotate in the same direction

• They both are of similar size and density

• They have the same gases in their atmospheres

• They were born at the same time

What makes planet Earth different from the other planets in the solar system?

• A. It supports life.

• B. It is mostly covered in water.

• C. The atmosphere holds gases.

• D. All of the above

Planet Earth is considered a “blue planet.” Which of the following best

describes the surface of planet Earth?

• A. Earth has an atmosphere.

• B. Earth has lots of volcanoes.

• C. Earth is covered with red dust.

• D. Earth has mostly water on the surface.