| A | B |
|---|
| model | a representation that shows what something looks like |
| planet | a large nearly round space object that orbits a star |
| star | a ball of hot gases that give off light and other types of energy |
| comets | a ball of rock and ice that orbits the sun |
| universe | everything that exists throughout space |
| dwarf planet | a nearly round object that orbits the sun, is larger than an asteroid and smaller than a planet |
| galaxy | a star system that contains large groups of stars |
| moon | a large rocky object that orbits a planet |
| meteroid | pieces of asteroids or comets that fall through space and enter Earth's atmosphere |
| estimate | to tell what you think about how much or how many |
| asteroid | rocky objects that orbit the sun |
