The smell of freshly cut grass is actually a plant distress call.
31
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Cold water weighs more than hot water.
93
Sound travels about 4 times faster in water than in air.
408
A cesium atom in an atomic clock beats over nine billion times a second.
43
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
