How does energy seem to disappear? Whiteboard exercise Play

How does energy seem to disappear? Student activity Play

How does light pass through a prism? Animation Play

How enzymes function Animation Play

How far away are the stars? Student activity Play

How far away are the stars? Whiteboard exercise Play

How far away the storm is Animation Play

How habitats vary Student activity Play

How human activities change the natural environment Student activity Play

How humans affect the environment Slideshow Play

How hybridisation works: the beryllium hydride molecule Animation 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 Student activity Play

How light travels Illustration Play

How long does it take for energy to pass through an ecosystem? Slideshow Play

How molecules absorb infra-red radiation Animation 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 much can you save by using an energy-saving light bulb? Whiteboard exercise Play

How much does it cost to watch television? Student activity Play

How much does it cost to watch television? Whiteboard exercise Play