Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The smell of freshly cut grass is actually a plant distress call.
31
One ragweed plant can release as many as one billion grains of pollen!
51
Cold water weighs more than hot water.
93
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
Iron weighs more after it rusts.
16
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21