What are the last four planets called?
Gas giants
Name all eight planets
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
What are the four terrestrial planets?
Mercury, Venus, Earth, Mars
What do we call the solar wind that is visible from Earth?
Aurora Borealis (or The northern lights)
What do we call the movement of a planet around the sun, or a moon around a planet?
An orbit
How much of the solar system's mass is the sun?
99.9%
What planet is closest to the sun?
Mercury
How many planets have moons?
six
What is the biggest planet?
Jupiter
Which planet has the biggest rings?
Saturn
What pulls the planets close to the sun?
gravity