Solar System Review

Front

What are the inner planets?

Back

The inner planets are the four rocky planets closest to the Sun: Mercury, Venus, Earth, and Mars.

Front

What is a dwarf planet?

Back

A dwarf planet is a celestial body that orbits the Sun and is similar to a planet but does not clear its orbit of other debris. An example is Pluto.

Front

What is the main difference between asteroids and comets?

Back

Asteroids are made of rock, while comets are made of dust and ice.

Front

Which planets in our Solar System have moons?

Back

Not all planets have moons; for example, Mercury and Venus do not have any moons.

Front

What are the outer planets primarily made of?

Back

The outer planets, also known as gas giants, are mostly made of gas.

Front

Name the outer planets in our Solar System.

Back

The outer planets are Jupiter, Saturn, Uranus, and Neptune.

Front

What is the significance of the asteroid belt?

Back

The asteroid belt is a region between Mars and Jupiter that contains many rocky bodies and separates the inner planets from the outer planets.

Front

What defines a planet in our Solar System?

Back

A planet is a celestial body that orbits the Sun, is spherical in shape, and has cleared its orbit of other debris.

Front

What is the Kuiper Belt?

Back

The Kuiper Belt is a region beyond Neptune that contains many small icy bodies, including dwarf planets like Pluto.

Front

How do planets in our Solar System move?

Back

Planets revolve around the Sun in elliptical orbits due to gravitational forces.