Welsh 
Weather Experiments and Demonstrations
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Greenhouse Effect
A demonstration for the classroom or home
The Solubility of CO2
An experiment with fizzy drink bottles
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Egg in a Bottle
Can you put an egg inside a bottle?
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Clouds in a Drink
An easy demonstration using salt and a fizzy drink
Make an Anemometer
Make your own DIY anemometer
Water Cycle in a Bag
See how the water cycle works
Why is the Sky Blue?
Try this experiment to find out
Make your own Lava Lamp
Try this fun experiment and make a lamp