One ragweed plant can release as many as one billion grains of pollen!
51
Most dust particles in your house are made from dead skin!
67
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Iron weighs more after it rusts.
68
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Balsa wood is classified as a hard wood!
41
Scientists aren't sure what color dinosaurs were.
312