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3 Simple Science Tricks

7 October 2016
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Everyone heard about the homemade science experiments, and even tried them at home. It’s a nice activity for kids and how they could start understanding world, science and nature. It’s a fun for adults, as many of us even don’t know those tricks and in what way they are explained by physics!

So, let’s check out the list of some interesting science tricks we can make at home of simple household items:

Fireproof Balloon

You need: 2 balloons, a candle, matches, water.

The trick: Fill the first balloon with air put it closer to a lit candle to show that the flame will cause it to explode. Then fill the second balloon with tap water, light the candle and put the balloon closer to it again. And nothing happens!

Why? - The water in the balloon takes the heat given out by the candle, so the material of the balloon doesn't burn.

Floating Egg

You need: 2 eggs, 2 glasses of water, some salt.

The trick: Carefuly place an egg in a glass of tap water. The egg will fall to the bottom. Then pour some hot water into the second glass and add 4-5 tablespoons of salt in it. Wait till the water becomes cool. Then drop the second egg in it. It will swim on the surface!

Why? - The average thickness of an egg is much greater than that of pure water, so it's pulled down. The thickness of the salt mixture is higher than that of the egg, so it can't fall to the bottom.

Colorful Cabbage

You need: 4 glasses with water in them, food colouring, a few cabbage leaves.

The trick: Add different coloured food colouring to each glass of water, then place a single cabbage leaf in them. Leave them till morning. Next day the leaves will be of another color.

Explanation: Plants absorb water, so their leaves also absorb the colour. This happens with flowers, grass and even trees.

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