Why do we get relief from wasp stings using baking soda?
What's the reaction behind it?
Sonic boom
Why do fighter jets create a loud “boom” when flying fast?
Why is bleaching powder used to disinfect water?
How does it kill germs?
Why is gold used in jewellery?
Is it only about its shine?
Why is sodium stored in kerosene?
Why can't we just keep it in air?
Atmospheric pressure
Why don't we get crushed under the weight of air above us?
Why does aluminium resist rusting?
Shouldn't metals corrode?
Vacuum bottles
Why do thermos flasks keep drinks hot or cold longer?
Why is graphite used in pencils?
What makes it smooth to write with?
Surface tension
Why do small insects walk on water?
Why is copper used in electrical wires?
Why not iron or aluminium?
Capillary action
How do trees lift water up from roots to leaves without pumps?
Why does hydrogen act both like a metal and a non-metal?
Why is it special?
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