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
Black hole

Black hole

An object with enough mass in a relatively small region of space that nothing can escape its gravity.

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Vacuum

Vacuum

Space which contains no matter at all.

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Earthquake

Earthquake

A shaking of the Earth's surface due to a release of energy within the crust.

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Alkali

Alkali

A solution with a pH greater than 7.

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Infectious

Infectious

A disease that can be passed from one organism to another.

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Positive charge

Positive charge

The charge that an object has due to a lack of electrons.

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