A cardboard model of a prism Animation Play

A magnifying glass Whiteboard exercise Play

A magnifying glass Whiteboard exercise Play

A magnifying glass Student activity Play

A magnifying glass Simulation Play

A magnifying glass Student activity Play

A magnifying glass Animation Play

A magnifying glass Simulation Play

A prism Whiteboard exercise Play

A prism Student activity Play

A prism Slideshow Play

A refracting telescope Animation Play

A refracting telescope Student activity Play

A spoon in a glass of water Animation Play

A spoon in a glass of water Animation Play

Absorption spectra Student activity Play

Absorption spectrum of gases Animation Play

Absorption spectrum of gases Student activity Play

Absorption spectrum of gases Simulation Play

Air and a glass block Whiteboard exercise Play

Air resistance Student activity Play

Amorphous materials Student activity Play

Amorphous solids Student activity Play

Amorphous solids Whiteboard exercise Play

An image formed by a magnifying glass Animation Play