At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Aluminum used to be more valuable than gold!
84
One ragweed plant can release as many as one billion grains of pollen!
51
German chemists made a replica of a trophy the size of one molecule.
68
Sound travels fifteen times faster through steel than through air.
134
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Scientists aren't sure what color dinosaurs were.
312