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science final

Matter anything that has mass and takes up space.
Chemistry Study of the properties of Matter and how Matter changes.
Chemical property Is a characteristic of a pure substance that describes its ability to change into another substances.
Physical property A characteristic of a pure substance that can be observed without changing it into another substance.
Element A pure substance that cannot be broken down into other substances by chemical or physical means.
Atom A basic particle from which all elements are made.
Molecule A particle made of two or more atoms bonded together.
Compound A pure substance of two or more elements chemically combined.
Chemical formula A formula that gives the elements in a compound and the ratio of atoms.
Mixture Two or more substances that are mixed together but not chemically combined.
Solution Is an example of a homogeneous mixture: forms when substances dissolve.
Weight A measure of the force of gravity on an object.
Mass A measure of how much matter is in an object.
Volume The amount of space matter occupies.
Density The measurement of how much mass of a substance is contained in a given volume. density = mass over volume.
Energy Is the ability to do work or cause change. every chemical or physical change in matter includes a change in energy.
Nucleus Control center, directing all of the cells activity.
Liquid A state of matter that has no definite shape but has a definite volume
Created by: hobbes765