Space Review 2

____________ is a rocky mass up to several hundred kilometers wide that revolves around the sun.

• comet

• asteroid

• moon

• planet

The Asteroid Belt is located between which two planets?

• Earth

• Mars

• Jupiter

• Saturn

A ________ is a small piece of rock moving in space.

• meteor

• meteoroid

• meteorite

A piece of a meteor that lands on Earth's surface is called a __________.

• meteor

• meteoroid

• meteorite

A _________ forms when a meteoroid hits Earth's atmosphere. When entering the Earth's atmosphere a streak of light is formed.

• meteoroid

• meteor

• meteorite

A frozen mass of different types of ice and dust orbiting the sun is called a __________.

• planet

• moon

• comet

• asteroid

A _________ is a large, round object that revolves around the sun but has not cleared the region around its orbit.

• planet

• comet

• dwarf planet

• moon

Which planet is classified as a dwarf planet?

• Mercury

• Neptune

• Pluto

• Mars

Identify the planets that do NOT have moons.

• Venus

• Saturn

• Mars

• Mercury

Earth's __________ takes about 365 days.

• rotation

• revolution

• orbit

• axis