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
Alveoli

Alveoli

Microscopic air sacs in the lungs.

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Gravity

Gravity

An attractive force.

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Hertz (Hz)

Hertz (Hz)

The SI unit of frequency.

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Spectrometer

Spectrometer

An instrument that measures a property of electromagnetic radiation over a range of wavelengths.

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Analog

Analog

An analog signal is one in which any variation in amplitude or frequency is continuous.

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Prey

Prey

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

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