Science Concepts

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Atom

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The basic unit of matter; made of protons, neutrons, and electrons.

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Molecule

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Two or more atoms bonded together.

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Element

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A pure substance made of only one type of atom.

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Compound

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A substance made of two or more elements chemically combined.

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Chemical Reaction

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A process that changes substances into new substances.

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Kinetic Energy

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Energy of motion.

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Potential Energy

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Stored energy due to an object’s position or condition.

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Force

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A push or pull on an object.

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Velocity

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Speed in a specific direction.

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Acceleration

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A change in velocity over time.