Get ready to put science to the test
BBC One
The best science lets you try, find out and prove things yourself.
Dr Yan has made how-to videos of ten activities for you to try. Have a go with friends and family in your home or garden, a pub or a park.
Balls of different sizes
Use science to get an amazing bounce from an ordinary ball.
Watch the video and you'll see it's instant fun.
All you need is two balls that weigh different amounts.
Spreading margarine evenly across 4 pieces of bread
No surprise: you can melt margarine in a microwave.
Big surprise: do it carefully and you can measure the speed of light - the fastest thing in the Universe.
Yan's video guides you through the maths and there's online help too.
Water flowing down an open plughole
So many people say that water flows down the plug one way in the northern hemisphere and the opposite way south of the Equator that it must be true, right?
It's just a theory until you put the science to the test yourself.
Watch Yan's video guide.
The Brain Test Britain Experiment
We need your help to carry out the largest ever scientific study of brain training.
Help us by training your brain for ten minutes a day, three times a week for six weeks.
Find out more or sign up today .
snail on the underside of a leaf
Be part of something big by looking out for something tiny. The OU wants your help in a nationwide experiment.
There's a theory that snails are reacting to climate change and altering their shells.
Check what the snails are like where you are and report what you find to the Evolution MegaLab.
Bang Goes the Theory roadshow map
Bang Goes The Theory took its live science shows to seven towns and cities.
The 2009 tour has now ended.
Browse all Hands-on videos or choose:
Liz about to snap dry spaghetti
If you bend dry spaghetti until it snaps, how many pieces does it break into?
See the correct answer
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