"Uranium is a moderately rare element. Its abundance is estimated to be about 1 to 2 parts per million, making it about as abundant as bromine or tin. The most common ore of uranium is pitchblende, although it also occurs in other minerals, such as uraninite, carnotite, uranophane, and coffinite."
Uranium has been used to help color glass since 79 A.D. It can also be found in some light bulbs to help lower the chances that the light bulb would burst and shatter once the electricity flows through the metal. The most well known and applicable use of uranium today is with nuclear products. During the nuclear fission of uranium-235, there is a huge explosion and causes an immense amount of energy to be released at one time. The result of this is a bomb that causes a lot of destruction.
Watch Uranium explode!
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This page by Anna T.