How far away are the stars? Whiteboard exercise Play

How far away the storm is Animation Play

How habitats vary Student activity Play

How is coherent light generated? Student activity Play

How is coherent light generated? Whiteboard exercise Play

How is light refracted in a glass of water? Animation Play

How light affects photosynthesis Simulation Play

How light travels Illustration Play

How light travels Student activity Play

How much can you save by using an energy-saving light bulb? Whiteboard exercise Play

How much can you save by using an energy-saving light bulb? Student activity Play

How much can you save by using an energy-saving light bulb? Whiteboard exercise Play

How much can you save by using an energy-saving light bulb? Whiteboard exercise Play

How planets reflect light Student activity Play

How planets reflect light Whiteboard exercise Play

How shadows are formed Animation Play

How to determine polarisation Animation Play

How to explain the refraction of light Animation Play

How to illuminate a room? Slideshow Play

How to light a Bunsen burner Animation Play

How to measure the speed of light Student activity Play

How to measure the speed of light Whiteboard exercise Play

How to measure wavelength? Student activity Play

How to measure wavelength? Whiteboard exercise Play

Hydrogen spectral series Illustration Play