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Matter and Energy
Matter and Energy Vocab
Term | Definition |
---|---|
heat | transfer of thermal energy |
conduction | heat transfer of energy from one object to another by direct contact |
convection | flow of energy through a liquid or gas, movement of warm air currents going up and cool currents going down |
radiation | transfer of thermal energy travels through space without direct contact |
matter | anything that takes up space, has properties that you can describe |
elements | building blocks of matter |
physical change | a change in the state, shape, or size without a change in the matter |
chemical change | atoms hook up in new ways, creates a new substance |
evaporation | heat added to liquids changes liquids into vapors such as gas; process by which a liquid becomes a gas |
condensation | vapors lose heat to condense--changing vapors from gas to liquid |
precipitation | rain, sleet, hail, snow |
transpiration | changes liquids into vapors (from plants) |
mass | volume, density; does not change even if shape changes |