Science Facts for Kids
Mind-blowing science facts
Sound travels faster in warm air than in cold air because heat gives air molecules more energy, allowing them to vibrate and pass on sound waves more quickly.
Despite being the force that holds planets and galaxies together, gravity is the weakest of the four fundamental forces of nature — trillions of times weaker than the strong nuclear force.
Helium is a non-renewable resource on Earth. Once released into the atmosphere, it floats up and escapes into space, which is why scientists warn we may one day run out.
White light from the Sun is actually made up of all the colours of the rainbow. A prism can split it into red, orange, yellow, green, blue, indigo, and violet.
An average cumulus cloud weighs about 500,000 kilograms — roughly the same as 100 elephants — but it stays up because the water droplets are spread over a huge volume of air.
Bioluminescence is a chemical reaction that allows certain organisms, such as fireflies and deep-sea fish, to produce their own light without any heat.
A vacuum flask works by having two walls with a vacuum between them. Since there is no air to carry heat, the drink inside stays hot or cold for much longer.
Antibiotics only work against bacteria, not viruses. Taking antibiotics for a cold or flu will not help because those illnesses are caused by viruses.
Atoms are about 99.9999999% empty space. If you removed all the empty space from the atoms in every person on Earth, all of humanity would fit inside a sugar cube.
Monarch butterflies navigate thousands of kilometres during migration by using the position of the Sun and an internal magnetic compass.