You must’ve seen leaves of many trees falling off during a certain period of the year. What do you think is the reason for this?
The quills of a porcupine have a spongelike filling that helps the porcupine float on water .SEDU-IFS
Goldfish eyes perceive not only the visible spectrum, but also infrared and ultraviolet light.
When apples, Pears, bananas and potatoes are cut, the cells get damaged and exposed to the air. Enzymes that are present in the cells react with the oxygen in the air , and the compounds that contain iron that are present in the cells,forming iron oxides which gives a brown colour to the cut surface.
Why do apples, Pears, Bananas and potatoes turn brown a while after being cut?
Gelatin is made out of a protein named collagen extracted from the skin, bones and tissues of animals like cattle, pigs and fish.
Saltwater fish need to drink more water than freshwater fish. Since seawater is saltier than the liquids in a fish’s body, water inside the body flows out constantly. If they didn’t drink to replace the lost water, saltwater fish would die of dehydration .
The wind flow of hurricanes in the southern hemisphere is clockwise while the wind flow of hurricanes in the northern hemisphere is counterclockwise.
Saturn’s rings are sets of thin rings of ice, dust and tiny rocks, which orbit the planet around its equator .
When a fish dies, bacterial enzymes attack the flesh of the fish .These enzymes decompose the muscle of the fish resulting in two amines.The mixing of these two amines give out the characteristic fishy smell.
Newborn babies don’t produce tears. They make crying sounds, but the tears don’t start flowing until they are about 4-13 weeks old.
The most slippery substance in the world is polytetrafluoroethene (PTFE, or Teflon) SEDU-IFS
A flame burns upwards because the heat energy generated in the burning process heats up the air around the flame, which reduces its density .This hot air around the flame then starts rising up and the surrounding colder heavier air rushes down into its place, accelerating the hot air upwards, which in turn causes the flame to shoot up.
Why does a flame burn upwards?
pearls, bones and teeth will dissolve in vinegar, which contains weak acetic acid.
Human fingernails grow nearly four times faster than toenails.
Steam comes out of the mouth on cold days because normal air that we breathe out every day is partially composed of water vapour, however we don’t see this vapour until the temperature drops. So when the vapour that’s in body temperature goes out to the cold environment ,it condenses and forms what appears as steam.