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matter vocab number 2
term | Definition |
---|---|
solid | atoms are packed tightly vibrate in place.have a definite shape, volume and mass. |
liquid | atoms touch but can slide past each other . definite mass and volume ; no definite shape. |
gas | atoms expand to full container. definite mass; no definite shape or volume. |
thermal energy | heat. |
phase change | adding to or taking thermal energy from a state of matter. |
temperature | most substances can exist as a solid; liquid or gas depending on this. |
thermal expansion |