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Slideshow

Science

Live Webcams at Edinburgh Zoo

See what some of the animals get up to throughout the day. You might even spot a tiger!

A selection of science experiments for you to try...

Colour Changing Milk

In this American video, all you need is whole milk, food colouring, cotton buds and washing up liquid. Watch what happens when the washing liquid is added to the milk (the food colouring is used so you can see what is happening). The soap in the washing up liquid bonds to the fat molecules in the milk which causes the milk to move and the food colouring to scatter. At the same time, the surface tension in the milk is destroyed by the washing up liquid .

What kinds of experiments could you do? You could try changing the variables to discover how they impact on the experiment. Would the scattering change if you used skimmed or semi-skimmed milk? What would happen if you used different brands of washing up liquid? You could try them and find out.

More experiments to try here...

Even more experiments here...

Picture 1 How are the Moon's Craters Formed?
Picture 2 Underwater Candle
Picture 3 Walking Water
Picture 4 Constellation Cups
Picture 5 Constellation Cups - hole patterns
Picture 6 Hanging Crystals
Picture 7 Lava Lamps
Picture 8 Balloon Rockets
Picture 9 Framing nature
Picture 10 Grow a Rainbow
Picture 11 Invisible Ink
Picture 12 The Leakproof Bag
Picture 13 Skittles Science
Picture 14 Fireworks in a Glass
Picture 15 Reversing Arrows
Picture 16 Tornado in a Bottle
Picture 17 Unpoppable Balloon
Picture 18 Balloon Water Powdered Pump
Picture 19 DIY Seed Bombs
Picture 20 Floating Ghosts
Picture 21 Ice and Salt Rainbow
Picture 22 Paper Plate Sun Dial
Picture 23 Shadow Puppets
Picture 24 Tea Bag Rocket
Picture 25 Upside Down Glass of Water
Picture 26 Melting Union Jack
Picture 27 DIY Straw Trumpet
Picture 28 Rain Cloud in a Jar
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