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Focus Class

Science Vocab Test Mrs. Walker

Matter Material that has mass and takes up space.
Atom The smallest unit of an element that has the properties of that element.
Solid Matter with a fixed volume and shape.
Liquid A state of matter with defined volume but no defined shape.
Gas A state of matter without any defined volume or shape in which atoms or molecules move about freely.
Melting Point The temperature at which a solid turns into a liquid.
Freezing Point The temperature at which a liquid turns into a solid.
Boiling Point The temperature at which a liquid changes into a gas.
Physical Property A characteristic that can be observed- such as texture, odor, color, melting point, boiling point, density, or measured such as mass, length, or volume that is used to describe matter and can be observed or measured without changing composition.
Physical Change A change in matter that does not affect its chemical composition.
Chemical Property The ability of a substance to change.
Chemical Change A process that changes substances into new substances.
Law of Conservation of Matter A fundamental principle of science stating that matter cannot be created or destroyed in a closed system
Sublimation When anything solid turns into a gas without first becoming liquid, thats sublimation.
Created by: bjones10