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Study Guide Chemistr
science quiz grade 8
| Question | Answer |
|---|---|
| the study of the properties of matter and how matter changes | chemistry |
| A single kind of matter that is pure, meaning it always has a specific make-up or composition and a specific set properties | substance |
| A characteristic of a pure substance that can be observed without changing it into another substance | physical property |
| A characteristic of a pure substance that describes its ability to change into different substances | chemical property |
| A pure substance that cannot be broken down into any other substances by chemical or physical means | element |
| A force of attraction between to atoms | chemical bond |
| Groups of two or more atoms held together by chemical bonds | molecules |
| A pure substance made of two or more elements chemically combined in a set ratio | compound |
| A measure of the force of gravity on you or an object. | weight |
| The measurement of the amount of matter in the object | mass |
| measure the properties of matter scientists use | International System of Units (SI) |
| The amount of space that an matter occupies | volume |
| Relates the mass of a material in a given volume | density |
| Any change that alters the form or appearance of matter but does not make any substance in the matter into a different substance | physical change |
| A change in matter that produces one or more new substances | chemical change |
| mass/volume | density |