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Chemistry Facts

Why does popcorn pop?

Popcorn is the most amazing food! It all starts with a kernel only several millimeters in diameter which explodes into a 40-50 times bigger fluffy, tasty, white wonder. The kernel is made of three ... Continue reading

The evolution of the popcorn kernel as it is exploding. Compare the sizes before and after it has popped.

Why Doesn't Glue Get Hard In The Plastic Bottle?

Glue, in its many different forms, is a very simple-to-apply sort of thing that represents a surprisingly complex amount of chemistry and physics. On the face of it, what could be simpler? Put on the ... Continue reading

Carbon Dating

As isotopes break down, or decay they give off radiation. Materials that decompose in this way are said to have a 'half-life'. As the quantity of material present decreases, so does the actual rate at ... Continue reading

Scientists date fossils by measuring carbon.

Radioactive Radon

Radon is a gas produced by the radioactive decay of the element radium. Radioactive decay is a natural, spontaneous process in which an atom of one element decays or breaks down to form another ... Continue reading

Radon gas, a radioactive product of uranium, can reach high levels in some houses, depending on the local geology and house construction.