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QR Challenge: Solar System Scavenger Hunt

Question	Answer
1. How far away is the sun?	The sun is 93-million miles away from Earth. This is equal to 146-million kilometers.
2. What is the hottest planet?	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.
3. Which planet has the most volcanoes?	Venus has more volcanoes than any other planet.
4. How many stars are in our solar system?	There is only one star in our solar system - the sun. Our galaxy has millions of stars.
5. Name all of the planets people have walked on.	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.
6. What does a Mars rover do?	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.
7. Name all of Mars' moons.	Mars has two small moons, named Phobos and Deimos.
8. What is Jupiter's “Great Red Spot”?	Jupiter, the largest planet, has a “Great Red Spot.” The red spot is a huge wind storm.
9. Name all of the planets that have rings.	Saturn is famous for it's bright rings, but it isn't the only planet with rings. Jupiter, Uranus, and Neptune also have them.
10. Name all of the planets that have rings.	Jupiter, Saturn, Uranus, and Neptune are known as “Gas Giants” because they're made of mostly gas.
11. What is the coldest planet in our solar system?	Uranus is the coldest planet in our solar system.
12. How fast do winds blow on Neptune's wind storms?	Neptune is the stormiest planet. Its wind storms blow three times as fast as hurricanes on Earth.
13. Why isn't Pluto considered a planet any more?	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.
14. Name all five dwarf planets in our solar system.	There are five known dwarf planets in our solar system. Their names are Pluto, Ceres, Haumea, Makemake, and Eris.
15. How long does it take light to travel from the sun to Earth?	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.
16. Name Pluto's three moons.	Pluto has three moons. Their names are Charon, Nix, and Hydra.
17. What were the names of the first two people to walk on the moon?	Neil Armstrong and Buzz Aldrin were the first people to walk on the moon.
18. When was the last time someone walked on the moon?	Twelve astronauts have walked on the moon. The first astronaut walked on the moon in 1969. The last astronaut walked on the moon in 1972.