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Chemical Changes
Review of chemical changes for 6th grade science in Texas
| Term | Definition |
|---|---|
| chemical change | creates a new substance with new properties |
| physical change | substance keep its identity |
| precipitate | a solid that forms when two liquids chemically react; it falls out of the solution |
| F.A.R.T.S. | acronym to remember the signs of a possible chemical change |
| F. | formation of a gas; bubbling or fizzing |
| A. | aroma - odor will change noticeably |
| R. | Rust - to remind you the color might change unexpectedly |
| T. | The Energy; light energy might be released or the temperature may go up or down due to heat energy changes |
| S. | Solid; also called precipitate |