Science Unit 7 Final

What is a star?

• a light I can see in the sky
• a huge ball of hot gas that produces light
• an asteroid
• a planet

What is a moon?

• a rocky object that orbits a planet
• a ball of light in the sky
• a super giant planet
• a dwarf planet

What is a planet?

• Somewhere people live
• a ball of hot gas that goes in a circle
• A relatively large sphere that revolves in orbit around the sun
• a group of billions of stars that are pulled together by gravity

Where is our solar system located in the universe?

Name this type of galaxy

Select all of the options that describe an inner planet

• They are closer to the sun
• They are icy planets
• They have no rings
• They are smaller in size but more dense
• They spin quickly but orbit the sun slowly

True or false, inner and outer planets are separated by an asteroid belt.

• True
• False

Select all the options that apply to outer planets

• They are bigger in size but less dense
• They are gas giants without a solid surface
• They have been known to sustain life
• They are all dwarf planets
• They all have rings

Which option is the correct order of inner planets starting with the planet closest to the sun?

• Mars, Jupiter, Venus, Mercury
• Earth, Saturn, Jupiter, Mars
• Mercury, Neptune, Earth, Mars
• Mercury, Venus, Earth, Mars

Which option is the correct order of outer planets starting with the planet closest to the asteroid belt?

• Saturn, Mars, Neptune, Pluto
• Jupiter, Saturn, Uranus, Neptune
• Jupiter, Saturn, Mars, Neptune
• Neptune, Uranus, Jupiter, Earth