Madrid train attacks - BBC NEWS | In Depth

On 11 March 2004, a series of bombs exploded within minutes of each other on four commuter trains in the Spanish capital Madrid.

BBC - KS1 Bitesize Maths - Number Pyramid : Fullscreen

A fun activity to help children at KS1 learn about addition and subtraction.

BBC - Schools Science Clips - Solids and liquids

Test what happens to different substances when you heat or cool them.

BBC Earth - Natural Disasters - facts, videos & pictures

Watch BBC video clips that delve into and explain the science behind different types of natural disasters such as volcanoes, earthquakes and tsunamis.

BBC - KS2 Bitesize Science - Light : Quiz

Short quiz on the subject of light, reflection and refraction.

BBC - KS2 Bitesize Science - Changing state : Play

Science materials exercise - Changing state activity

BBC - The Little Animals Activity Centre - Homepage

BBC - KS3 Bitesize Science - Reproduction : Test

A quiz to test your knowledge of reproduction.

Saving money through energy efficiency - BBC News

Rising energy bills and the arrival of winter represent the perfect opportunity to look at ways you can save money by making a few simple upgrades to your home.

Creatures in the aphotic zone. BBC Earth

Creatures in the aphotic zone. BBC Earth