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
Desertification

Desertification

The degradation of usable land into desert.

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Cathode

Cathode

The electrode out of which electrical current flows in a polarized device.

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Matter

Matter

A physical substance.

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Radioactivity

Radioactivity

The spontaneous decay of atomic nuclei.

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Irritant

Irritant

A substance that produces inflammation or pain on contact.

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Normal

Normal

A line perpendicular to a surface.

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