| A | B |
|---|
| Natural resources | Things found in nature that people can use. |
| Minerals | Substances found on Earth that are neither animal nor vegetable. Some examples are gold, copper, salt, and granite. |
| Fossil fuels | Fuels formed from the remains of plants and animals that lived thousands of years ago. Some examples are coal, oil, and natural gas. |
| Renewable resources | Resources that can be renewed or replaced. An example would be trees. |
| Nonrenewable resources | Resources that cannot be easily replaced. An example would be fossil fuels. |
| Conservation | Preserving and protecting resources. |
| Environment | All the things that surround us, such as land, water, air, and trees. |
| Yellowstone National Park | The first national park in the United States. |
| Theodore Roosevelt | The president credited with establishing many of our national parks. |
| Mount McKinley | The highest peak in North America. It is located in Alaska. |
| Mammoth Cave National Park | The world's longest cave system located in Kentucky. |
| Everglades National Park | The national park located in Florida where you can observe alligators, manatees, and bottle-nosed dolphins. |
| Marjory Stoneman Douglas | A writer who dedicated many years of her life to protecting the Everglades. |
| Pollution | The addition of harmful substances to the air, water, or soil. |
| Recycle | To use something again. |
