Iron weighs more after it rusts.
16
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Cold water weighs more than hot water.
93
Liquid TIDE laundry detergent glows under a blacklight.
96
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Iron weighs more after it rusts.
68
One ragweed plant can release as many as one billion grains of pollen!
51
The sun is 330,330 times larger than the earth.
75