| A | B |
|---|
| year | 365 days or how long it takes the Earth to go around the sun |
| asteroids | big chucks of rock and metal in space |
| asteroid belt | separates the inner planets from the outer planets |
| inner planets | the first 4 planets that are closest to the sun |
| sun spots | cool spots on the sun |
| atmosphere | a layer of air around the Earth |
| solar system | the sun and the 9 planets that rotate around the sun |
| solar flare | giant storms on the sun |
| gravity | a force that pulls you down to Earth |
| rotates | turns in a circle |
