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
Species

Species

The most basic unit in the hierarchy of types of organisms.

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Crude oil

Crude oil

A naturally occuring thick brown liquid.

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Chemical energy

Chemical energy

Energy released in chemical reactions.

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Nuclear

Nuclear

Relating to the nucleus of an atom.

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Pressure

Pressure

Force per unit area, measured in newtons per square meter, or pascals.

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Stationary

Stationary

Not moving, completely at rest.

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