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Science unit 7
| Term | Definition |
|---|---|
| Define a physical property. | A physical property is a characteristic of matter that can be observed, measured, or detected without changing the substance's chemical identity |
| Define a chemical property | Chemical properties are characteristics of a substance that become evident only during or after a chemical reaction, altering its molecular identity. |
| Define a physical change | A physical change is a alteration to a substance's state, shape, or appearance without changing its molecular composition or creating a new substance |
| Define a chemical change | A chemical change occurs when substances are transformed into new materials with entirely different properties, involving the breaking and forming of chemical bonds |
| Describe the change in mass of our bath bomb and water reaction in a closed system | The mass remained the same throughout the reaction |
| What equipment is needed in order to measure the density of a rock | Graduated cylinder and a triple-beam balance |
| What equipment is needed in order to measure the density of a metal cube. | Metric ruler and a triple-beam balance |
| What do graduated cylinders measure | volume |
| What do balance scales measure | Mass |
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