The average home creates more pollution than does the average car.
33
Pumice is the only rock that floats on water.
14
The sun is 330,330 times larger than the earth.
75
Diamonds can be shattered with a hammer.
-104
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
One ragweed plant can release as many as one billion grains of pollen!
51
Aluminum used to be more valuable than gold!
84