Stars and Planets Review

What is the difference between radio and optical telescopes?

• Radio telescopes use lights. Optical telescopes use waves.
• Radio telescopes use waves. Optical telescopes use light.

A planet is...

• ...a hot ball of gas.
• ...something that can produce its own light.
• ...a body that orbits around another planet.
• ...a body of rock or gas that orbits a star.

Which of the following is an inner planet?

• Venus
• Jupiter
• Pluto
• Saturn

Which of the following is an outer planet?

• Earth
• Mars
• Venus
• Neptune

Telescopes make things look...

• shinier
• darker
• flatter
• bigger

If a planet is further away from Earth, it's year is going to be...

• longer
• shorter
• the same

A star is...

• a hot ball of gas.
• a ball of rock or gas that orbits a star.
• a ball of rocky material that orbits a planet.
• a big yellow dot.

The sun provides the Earth...

• heat and light.
• heat and cold.
• light and darkness.
• light and cold.

Which is the correct order of the inner planets?

• Venus, Mars, Earth, Mercury
• Mercury, Venus, Earth, Mars
• Mars, Venus, Earth, Mercury
• Earth, Venus, Mercury, Mars

Which is the correct order of the outer planets?

• Jupiter, Saturn, Uranus, Neptune
• Saturn, Uranus, Jupiter, Neptune
• Neptune, Uranus, Jupiter, Saturn
• Jupiter, Neptune, Uranus, Saturn