Physical Science 1
Order by
17 terms
Terms | Definitions |
|---|---|
 matter | anything that has mass and takes up space |
| substance | a single kind of matter that is pure |
| physical property | a characteristic of pure substances that can be observed without changing it into another substance |
| chemical property | a characteristic of a pure substance that describes its ability to change into different substances |
| element | a pure substance that cannot be broken down into any other substances by chemical or physical means |
| atom | the basic particle from which all elements are made |
| chemical bond | a force of attraction between two atoms |
| molecules | groups of two or more atoms held together by chemical bonds |
| compound | a pure substance made of two or more elements chemically combined in a set ratio |
| chemical formula | shows the elements in the compound and the ratio of atoms |
| mixture | two or more substances-elements, compounds or both, that are together in the same place but are not chemically combined |
| heterogeneous mixture | when you can see the different parts of the mixture ex: salad |
| homogeneous mixture | when the substances in the mixture are so evenly mixed that you can't see the different parts ex: sugar water |
| solution | a well-mixed mixture containing a solvent and at least one solute that has the same properties throughout |
| physical change | any change that alters the form or appearance of matter but does not make any substances in the matter into a different substance |
| chemical change | a change in matter that produces one or more new substance |
| law of conservation of matter | the fact that matter is not created or destroyed in any chemical or physical change |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.