Planets Review

Front

What is the definition of a planet?

Back

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

Front

Why was Pluto reclassified as a dwarf planet?

Back

Due to its small size and inability to clear its orbit of other objects.

Front

What is the largest planet in our solar system?

Back

Jupiter.

Front

What is the primary source of energy for the solar system?

Back

The Sun.

Front

List the terrestrial planets in our solar system.

Back

Mercury, Venus, Earth, Mars.

Front

What are gas giants?

Back

Planets that are primarily composed of hydrogen and helium, such as Jupiter and Saturn.

Front

What is the order of the planets from the sun?

Back

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

Front

What distinguishes terrestrial planets from gas giants?

Back

Terrestrial planets have solid surfaces, while gas giants do not.

Front

What is the significance of the asteroid belt?

Back

It separates the terrestrial planets from the gas giants and contains many small rocky bodies.

Front

What is the Kuiper Belt?

Back

A region beyond Neptune that contains many small icy bodies, including dwarf planets like Pluto.