Hydrogen is a colourless and odourless gas. When combined with oxygen in a fuel cell it can generate electricity, which can be used to power vehicles, operate tools or heat houses.
- This clip is from:
- First broadcast:
- 6 October 2008
This clip could be used to stimulate a debate about different forms of renewable energy, which ones are the best and why. It might also be useful as a stimulus prior to writing a persuasive letter about sustainability. Pupils could research other sources of renewable energy in groups and present to the whole class, before voting on the one that they think is the best.