Earth and Sun Investigation 2 Vocabulary

1) a group of stars in a pattern given a name by people

• constellation
• asteroid
• comet
• dwarf planet
• phase

2) a huge sphere of hydrogen and helium gas that radiates heat and light

• star
• asteroid
• comet
• constellation
• dwarf planet

3) The four small, rocky planets closest to the Sun. These are Mercury, Venus, Earth, and Mars.

• terrestrial planet
• asteroid
• comet
• constellation
• dwarf planet

4) a small, solid object that orbits the Sun

• asteroid
• comet
• constellation
• dwarf planet
• phase

5) the Sun and the eight planets and other objects that orbit the Sun

• solar system
• asteroid
• comet
• constellation
• dwarf planet

6) a mass of ice, rock and gas orbiting the sun

• comet
• asteroid
• constellation
• dwarf planet
• phase

7) a round object that orbits the Sun and does not orbit a planet

• dwarf planet
• asteroid
• comet
• constellation
• phase

8) the shape of the visible part of the Moon

• phase
• asteroid
• comet
• constellation
• dwarf planet