| A | B |
|---|
| chemical properties | A characteristic of a substance that can only be seen when the substance changes and a new substance is formed; describes how matter reacts with other matter. |
| physical properties | A characteristic of a material or object that can be seen or measured without changing the material into a new substance. |
| metric system | A system of measurement in which the number of smaller parts in each unit is based on the number 10 and multiples of 10. |
| standard unit | A unit of measure that everyone agrees to use. |
| property | A characteristic that describes matter. |
| volume | The amount of space that matter takes up. |
| density | The property that describes how much matter is in a given space, or volume. |
| matter | Anything that has mass and takes up space. |
| mass | The amount of matter that something contains. |
| atom | The smallest unit of matter |
| telescope | used to view objects very far off such as stars and planets |
| microscope | used to view particles of matter that are too small to be seen with the eye alone |
| magnifying glass | used make matter seen with the eye alone, appear larger for purposes of study |
| molecule | the smallest particle of matter that still contains the physical and chemical properties of the original |
