Scientists aren't sure what color dinosaurs were.
312
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
The smell of freshly cut grass is actually a plant distress call.
31
A ball of glass will bounce higher than a ball made of rubber.
73
A cesium atom in an atomic clock beats over nine billion times a second.
43
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
A cubic yard of air weighs about 2 pounds at sea level.
31
Research indicates that plants grow healthier when they are stroked.
173