Science Grade 4_Review for Endterm Test 2

bodies in outer space, made of hot gases, that shine in the night sky.

• stars

• gravity

• comet

• asteroid

• planet

a natural object that revolves around a planet

• moon

• gravity

• comet

• asteroid

• planet

a large, round object that revolves around the sun but has not

  cleared the region around its orbit

• moon

• gravity

• dwarf planet

• asteroid

• planet

a large, round object that revolves around a star and has cleared the

  region around its orbit

• moon

• gravity

• dwarf planet

• asteroid

• planet

revolving around another object

• moon

• gravity

• dwarf planet

• orbiting

• planet

the force that pulls all objects toward each other

• moon

• gravity

• dwarf planet

• orbiting

• planet

irregularly shaped rocks that orbit stars

• asteroid

• gravity

• dwarf planet

• orbiting

• planet

a frozen mass of different types of ice and dust orbiting the sun

• asteroid

• gravity

• dwarf planet

• orbiting

• comet

Which planet has liquid water on its surface?

• Mercury

• Venus

• Mars

• Earth

What is this?