Ethan and Lily are learning about the solar system. They discover a region between the inner and outer planets where most asteroids orbit around the Sun. What is this region called?

• Asteroid belt

• Galaxy

• Orbit

• Milky Way

Emma and Grace are stargazing and notice a rocky or metallic object that orbits the Sun and is much smaller than a planet. What is it?

• Asteroid

• Comet

• Moon

• Star

Noah and Isla were stargazing one night and wondered, "What is a large group of stars held together by gravity and separated from other groups of stars by large regions of space?"

• Galaxy

• Solar system

• Universe

• Asteroid belt

Scarlett and Maya are discussing the solar system. Scarlett asks, "Which planets are considered inner planets?"

• Mercury, Venus, Earth, Mars

• Jupiter, Saturn, Uranus, Neptune

• Earth, Mars, Jupiter, Saturn

• Venus, Earth, Neptune, Pluto

Evelyn was reading about celestial bodies and came across one that is made of ice, dust, and rock with an elongated and elliptical orbit that revolves around the Sun. What is this celestial body called?

• Comet

• Planet

• Galaxy

• Asteroid

Olivia and David are stargazing and discussing the galaxy that contains our solar system. What is the name of this galaxy?

• Milky Way

• Andromeda

• Asteroid belt

• Universe

Benjamin and Mia are discussing the solar system. Which planets do they identify as outer planets?

• Jupiter, Saturn, Uranus, Neptune

• Mercury, Venus, Earth, Mars

• Earth, Mars, Jupiter, Saturn

• Venus, Earth, Neptune, Pluto

Emma is looking up at the night sky and wonders what is a natural satellite that orbits a planet?

• Moon

• Comet

• Star

• Asteroid

Priya is observing the motion of the Earth around the Sun. She notes that one complete revolution around the Sun equals one year. What is this motion called?

• Revolution

• Rotation

• Orbit

• Galaxy

Elijah is observing the Earth from space. He notices that the Earth spins on its axis, causing day and night. What is this spinning motion called?

• Rotation

• Revolution

• Orbit

• Galaxy