Name the planets of the inner solar system in order of closest to the sun.
Mercury, Venus, Earth, and Mars.
20
Name the planets in our solar system starting closest to the sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
20
Name the terrestrial planets.
Mercury, Venus, Earth and Mars.
20
This is what causes the tides on Earth.
Moon's gravity.
20
This planet is the least dense and lightest planet in our solar system. It is mostly made of hydrogen and helium.
Saturn.
25
This quick planet spins FAST - only taking 9 hours to complete a rotation. The fast rotation also causes many storms, and it has a constant storm called the "Great Red Spot". It also has 79 moons.