Science Glossary
  • 500+ key scientific terms visualized in stunning images and concise textual definitions
  • Short 30–60 second films using memorable visual and written learning cues
  • Clear and engaging, Twig Science Glossary reinforces the learning of key curriculum terms
Billion

Billion

One thousand million.

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Antioxidant

Antioxidant

A molecule that can inhibit the oxidation of other molecules.

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Combustion

Combustion

A chemical reaction between a fuel and an oxidizing agent that produces heat, and often light.

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Continental crust

Continental crust

The uppermost layer of the Earth.

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Gas

Gas

The state of matter in which particles are widely separated and are in constant random motion.

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Prey

Prey

An animal that is hunted and killed for food by a predator.

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