A ball of glass will bounce higher than a ball made of rubber.
73
4.5 pounds of sunlight strike the Earth each day.
27
Research indicates that plants grow healthier when they are stroked.
173
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Iron weighs more after it rusts.
16
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
The smell of freshly cut grass is actually a plant distress call.
31
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101