Science Facts for Kids
Mind-blowing science facts
Alexander Fleming discovered penicillin by accident in 1928 when he noticed that mold growing on a petri dish was killing surrounding bacteria. This chance observation led to one of the greatest medical breakthroughs in history.
Saturn is the least dense planet in our solar system — in fact, it is less dense than water. If you could find a bathtub large enough, Saturn would float.
When helium is cooled close to absolute zero it becomes a 'superfluid' with zero viscosity. It can flow without friction, form films on surfaces, and even crawl up and over the walls of its container.
Tardigrades — tiny eight-legged creatures called 'water bears' — can survive boiling water, deep freezing, intense radiation, and even the vacuum of outer space. They are the toughest known animals on Earth.
The story of Newton watching an apple fall from a tree is real — it happened around 1666 and inspired him to think about gravity as a force that could reach all the way to the Moon. The apple tree still grows at Woolsthorpe Manor in England.
Research has shown that the human eye is sensitive enough to detect a single photon of light. In near-total darkness, your visual system is remarkably close to the physical limit of what is possible.
Studies have shown that pigeons can be trained to detect cancerous cells in medical images with an accuracy rivaling that of trained pathologists. Their exceptional visual memory makes them surprisingly effective at pattern recognition.
When you flip a light switch, the electrical signal travels through the wire at about 70 to 99 percent the speed of light — even though the individual electrons move much more slowly.
Leafcutter ants can carry objects up to 50 times their own body weight. Scaled up to human size, that would be like a person lifting a school bus over their head and carrying it across a park.
The rumbling sound your stomach makes is called borborygmus. It is caused by muscles in your digestive tract squeezing and pushing air, fluid, and food — and it happens all the time, not just when you are hungry.