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
Hemoglobin

Hemoglobin

A protein found in red blood cells.

View film

Linnaean hierarchy

Linnaean hierarchy

A hierarchical system for biological classification.

View film

Transpiration

Transpiration

The loss of water vapor by plants to the atmosphere through their surfaces.

View film

Antenna

Antenna

A transducer that transmits or receives electromagnetic waves.

View film

Cathode

Cathode

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

View film

Kinetic Energy Glossary video

Kinetic Energy Glossary video

The energy an object possesses by virtue of its motion.

View film