| A | B |
| tornado | funnel-shaped, spinning windstorm, sometimes called a cyclone or twister |
| hurricane | huge tropical storm with heavy rains and winds of a least 74 miles per hour |
| drought | a long period of little or no rain |
| natural resource | something found in nature that people can use |
| product | something that people make or grow, usually to sell |
| scarce | not abundant (not a lot of it) |
| mineral | a natural substance found in rocks |
| fuel | nature resource, such as coal, oil, or natural gas, burned to make heat or energy |
| conservation | protection of natural resources and using them wisely |
| renewable | able to be made or grown again by nature or people (trees) |
| recycle | to use again |
| nonrenewable | not able to be made again quickly by nature or by people (coal) |
| pollution | act of making a natural resource, such as air, soil, or water, dirty or unsafe to use |
| classify | to put into groups |