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science (matter)
matter
| Term | Definition |
|---|---|
| matter | anything that has mass takes up space |
| volume | measure of the size of a body or region in the three-dimensional space L times W times H = V |
| Density | the ratio of the mass of a substance to the volume of the substance |
| Mass | measure of the amount of matter in an object |
| inertia | tendency of an object to resist being moved or if the object is moving to resist a change in speed or direction until an outside force acts on the object |
| physical properties | characteristics of a substance that doesn't envolve chemical change such as density color or hardness |
| 6 different physical properties | thermal conductivity, state, density, solubility, ductility, malleability |
| chemical properties | property of matter that describes a substance's ability to change into a new matter that has different properties (ex. wood smoke ashes) |
| physical change | change of matter from one form to another without a change in chemical properties |
| flammability | the ability of a substance to burn |
| reactivity | the ability of two or more substances to combine and form one or more new substances |
| states of matter | solid-shape its in L times W times H = V, liquid-takes shape of its container L times W times H = V, gas-doesn't have a shape or V |
| temperature | measure of how hot or cold something is specifically measure of the average kinetic energy of the particles in an object |
| pressure | amount of force exerted per unite area of a surface |
| boyle's law | law that states that the volume of a gas is inversely proportional to the pressure of a gas when the temp is constant |
| charle's law | law that states that the volume of a gas is directly proportional to the temp of gas when pressure is content |
| change of state | change of a substance from one physical state to another Melting-solid to liquid, Freezing-liquid to solid, Evaporation-liquid to vapor or s=gas, Condensation-gas to liquid, Sublimation-solid to gas |
| endothermic | chemical reaction that requires heat |
| Exothermic | chemical reaction in which heat is real eased to the surroundings |