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Matter and Energy
Chemical and physical properties and change
Question | Answer |
---|---|
Reactants | The ingredients that interact and cause a physical or chemical change |
Product | What is made after the physical or chemical change occurs. |
Physical Properties | Properties that can be observed or measured withouth changing the matter. Examples: odor, density, mass, state, volume, color, texture |
Chemical Properties | Describes matter based on its ability to change into new matter with different properties, these properties can only be observed during a chemical change. Examples: Flammability and re-activity. |
Physical Change | A change that does not for a new substance. Examples: Butter on toast, mixing Koolaid, and making trail mix. |
Chemical Change | One or more substances are changed into new substances that have new and different properties. Examples: Grilling a steak, color change when chemicals are mixed. |
Thermal Energy | Heat Energy |
Conduction | The transfer of heat through solids. |
Convection | The transfer of heat through liquids and gases; occurs in a cycle. |
Radiation | The transfer of heat through electromagnetic rays from the sun. |