Term | Definition |
Matter | Anything that has mass and occupies space |
Mass | The amount of matter in an object |
Mixture | A substance consisting of two or more substances mixed together |
States of Matter | The physical forms in which a substance can exist; states include solid, liquid, and gas |
Solid | A state of matter that has definite shape and volume |
Liquid | A state of matter that has definite volume but an indefinite shape (takes up the shape of the container) |
Gas | A state of matter that has no definite volume or shape |
Physical Property | A characteristic that can be observed or measured without changing the identity of the substance |
Chemical Property | A characteristic of a pure substance that describes its ability to change into different substances |
Density | The amount of matter in a given space (mass divided by volume) |
Volume | The amount of space an object takes up |
Weight | The measure of force of gravity on an object |
Molecule | The smallest part of a substance made from more than one atom that still has the properties of that substance |
Boiling Point | The temperature at which a liquid changes to a gas. |
Condensation | The process by which a gas changes into a liquid. |
Evaporation | The process by which a liquid changes into a gas. |
Freezing Point | The temperature at which a liquid changes into a solid. |
Dissolve | To mix completely with another substance to form a solution |
Melting Point | The temperature at which a solid changes into a liquid. |