| A | B |
|---|
| The changeable factor in an experiment is | a variable |
| The standard for comparison in an experiment is | a control |
| The sphere of the earth that includes all earth’s waters is the | hydrosphere |
| A well-tested explanation for a wide range of observations or experimental results is called a | scientific law. |
| The source of energy that drives the weather is the | Sun |
| Using one or more of your senses to gather information is called | observing. |
| A mineral is inorganic, which means | that it contains no materials that were once part of living things. |
| The color of a mineral’s powder is called its | streak. |
| A rock that contains a metal or other useful mineral that can be mined and sold at a profit is called | an ore. |
| A hard, colorful mineral that has a brilliant or glassy luster is . | a gem |
| An example of a mineral that is a native element is | copper. |
| The repeating pattern of a mineral’s particles to have an orderly internal arrangement forms a solid called | crystal. |
