The Night Sky Vocabulary Quiz #2

a spinning movement

• gas giants

• rotation

• day

• axis

the sun and all the objects that orbit around it (planets, asteroids, meteors, comets, etc)

• solar system

• orbit

• day

• inner planets

an imaginary line that goes through the Earth from the North Pole to the South Pole

• axis

• year

• solar system

• rotation

the last four outer planets that are made up of mostly gas (they are giant)

• inner planets

• gas giants

• solar system

• day

the length of time it takes a planet to complete one rotation on its axis

• day

• year

• axis

• orbit

the first four planets closest to the sun

• solar system

• inner planets

• gas giants

• axis

a curved path

• rotation

• axis

• year

• orbit

the length of time it takes a planet to orbit once around the sun

• day

• orbit

• rotation

• year

Day and night occur because the Earth orbits around the sun.

• true

• false

The earth tilts on its axis.

• true

• false