Solar System Unit Test 2025

Front

Why was it possible for Voyager to use each planet's gravity for a speed boost to get out to planets like Uranus and Neptune faster?

Back

All the planets were aligned

Front

Methane gas gives Uranus its blue color.

Back

True

Front

What is strange about Uranus' rings?

Back

They are tilted and do not go in the same direction as the planet's orbit about the sun.

Front

All the planets in the solar system orbit in this direction (except Venus and Uranus).

Back

counterclockwise

Front

Why is Uranus tipped on its side?

Back

An Earth-sized object could have smashed into it

Front

Neptune winds, the fastest in the solar system, blow at up to

Back

1500 mph

Front

Pluto is in a zone of primitive, icy objects beyond Neptune’s orbit called

Back

The Kuiper Belt

Front

Deep in Pluto’s interior may be radioactive elements that generate heat as they decay, warming up a liquid layer of ____ beneath the planet’s crust.

Back

water

Front

What did New Horizons see when it turned its camera back for one last look?

Back

Pluto’s blue atmosphere

Front

Which planet is the hottest?

Back

Venus