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Science 1
Term | Definition |
---|---|
Weight | The force of gravity on an object |
Mass | The amount of matter in an object |
Matter | It is whatever has mass and takes up space |
Volume | It is the amount of space a object occupies |
Density | Measure of mass in a given volume mass/volume |
Atom | The main particle that all elements are made of |
Molecule | A set of 2 atoms held together by a chemical bond |
Physical Change | It may look different but it is still the same substance |
Physical properties | A substance that is observed but not changed into a new substance |
Chemical properties | A substance that can change into another substance |
Chemical Change | It turns into a new substance or substances |
law of conservation of mass/matter | Matter/mass is never created or destroyed in a chemical or physical change |
Thermal energy | The total energy of motion of all particles in a object |
Chemical energy | The energy stored in the chemical bonds between atoms |