| A | B |
|---|
| Oceans | the largest bodies of water on earth |
| Saltwater can be found in | oceans |
| Freshwater can be found in | rivers, ponds, streams, & lakes |
| A good way to conserve metals | recycling |
| A good way to conserve gasoline | electric cars |
| Erosion can be prevented by | planting trees, grass, & other plants |
| Plants release water through | transpiration |
| Our temperatures vary in seasons due to | the tilt of the earth on its axis |
| Beach pollution can be caused by | offshore drilling |
| Hurricanes gain power by | evaporating water from oceans |
| Renewable energy sources can reduce | carbon dioxide from cars |
| Rotating | the spinning of Earth on its axis |
| Revolution | the orbit of the Earth around the Sun |
| Glacier | Earth's largest reservoir of freshwater |
| In the morning shadows are | longer |
| Around noon, shadows are | shorter |
| condensation | water collecting to form clouds |
| precipitation | water falling from the atmosphere |
| evaporation | the process of water returning to atmosphere |
| transpiration | Water moving out from plants leaves |
| Sun | Earth's closest star |
| The Sun appears larger than other stars | because it is closer to Earth |
| Windmills conserve non-renewable resources | with minimal pollution |
| A lake is a large body of water | surrounded by land |
| A river is a body of water | that empties into a larger body of water |
| A stream is a freshwater source | that flows into a river |
| When we use overuse resources we | have a negative impact on our environment |
| If we replace trees when we cut them down we | have a positive impact on our environment |
| The Earth's rotation causes | day and night to occur |
