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Science 1
Term | Definition |
---|---|
Weight | The force of gravity on an object |
Mass | Amount of matter an object has |
Matter | Has mass and takes up space |
Volume | The amount of space an item occupies |
Density | Measure of mass in a given volume D=Mass/Volume |
Atom | Basic particule from with all elements are made |
Molecule | A group of 2 or more atoms held together by a chemical bond |
Physical Properties | A substance observed without changing into a new substance |
Chemical Properties | Substance that has an ability to change into a different substance |
Physical Change | Change the appearence of matter doesn't turn into a different substance |
Chemical Change | Transforms into a new substance or substances |
Law of Conservation of Mass | Matter is not created or destroyed by chemical or physical change |
Thermal Energy | Total energy of motion of all the particules in an object |
Chemical Energy | Energy stored in chemical bonds between atoms |