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Science Vocabulary
Science Vocabulary & Definitions for Science Exam
Term | Definition |
---|---|
Mass | A measure of the amount of matter in an object. |
Weight | A measure of how gravity pulls on an object. |
Volume | A measure of how much space an object takes up. |
Matter | Anything that has mass and takes up space. |
Surface Tension | The skin that forms on the surface of water. |
States of Matter | Liquid, Gas, and Solid. |
Density | The amount of mass for each cm 3 (or mL) of a substance. |
Buoyancy | The resistance to sinking. |
Element | A material that cannot be broken down into anything simpler by chemical reactions. |
Metal | An element that shares common properties such as shiny luster, conductibility and flexibility. |
Atom | The smallest unit of an element that retains the properties of that element. |
Nucleus | The center of an atom. |
Proton | A particle with one unit of positive electric charge. |
Neutron | A particle with no electric charge-neutral. |
Electron | A smaller particle with one unit of negative electric charge each. |
Chemically Reactive | The tendency of a substance to undergo chemical changes in a system. |