| Question | Answer |
| The sun is 93-million miles away from Earth. This is equal to 146-million kilometers. | 1
|
Mercury is the closest planet to the sun, but it is not the hottest. Venus is the hottest planet because it has many clouds that trap in heat. | 2
| Venus has more volcanoes than any other planet. | 3
| There is only one star in our solar system - the sun. Our galaxy has millions of stars. | 4
| Earth is the only planet people have ever walked on. Astronauts have also walked on the Earth's moon, but that's not a planet. | 5
| Scientists have sent robots, called rovers, to explore Mars. The rovers drive around the surface of Mars, take pictures, and send them back to Earth. | 6
| Mars has two small moons, named Phobos and Deimos. | 7
| Jupiter, the largest planet,has a “Great Red Spot.” The red spot is a huge wind storm. | 8
| Saturn is famous for it's bright rings, but it isn't the only planet with rings. Jupiter, Uranus, and Neptune also have them. | 9
| Jupiter, Saturn, Uranus, and Neptune are known as “Gas Giants” because they're made of mostly gas. | 10
| Uranus is the coldest planet in our solar system. | 11
| Neptune is the stormiest planet. Its wind storms blow three times as fast as hurricanes on Earth. | 12
| Pluto used to be considered a planet. Scientists decided it was too small to be a“real planet,” so it is now a dwarf planet. | 13
| There are five known dwarf planets in our solar system. Their names are Pluto, Ceres, Haumea, Makemake, and Eris. | 14
| It takes light eight minutes to travel from the sun to Earth. The sunlight you see outside right now, actually left the sun's surface eight minutes ago. | 15
| Pluto has three moons.Their names are Charon, Nix, and Hydra. | 16 |
