| A | B |
| evaporation | gas that goes into the air |
| moon | reflects light from sun |
| work | to move something |
| equator | warm because it is closer to the sun |
| migration | animals move to different location |
| compass | needle points north because it is a magnet |
| fog | low clouds close to the ground |
| carnivore | Sharp teeth |
| birds | can fly because of hollow bones |
| fair test | everything is the same except for 1 thing |
| recycle | good for earth's environment |
| friction | causes things to slow down |
| freezing and melting | Causes rocks to break down into soil |
| 32 degrees | water freezes |
| 1 year | Time for earth to revolve around sun |
| Sun | Main source of all living things. |
| mound | pile |
| transparent | see-through |
| scientist | person who studies science |
| submarine | underwater |
| melting | solid to liquid |