| A | B |
|---|
| radio telescope | collect radio waves |
| look into the sun | Never do this,especially with a telescope |
| planet movement | orbits around a star |
| outer planets | farthest from the sun |
| Jupiter, Saturn, Uranus, Neptune | outer planets |
| inner planets | closest to the sun |
| Mercury, Venus, Earth, Mars | inner planets |
| ball of hot gasses | star |
| farthest, longest orbit | It will have the longest year |
| Earth can support life because... | it has the right amount of light and heat. |
| optical telescope | magnifies distant objects by collecting light |
| planets and stars both... | look like points of light in the night sky |
| cold, dark, far from the sun | outer planets |
| humans have always looked at | planets |
| 6 months | Earth travels halfway around the sun |
