Human tapeworms can grow up to 22.9m.

Every year over one million earthquakes shake the Earth.

The Australian billygoat plum contains 100 times more vitamin C than an orange.

One in every 2000 babies is born with a tooth.

The Earth is 4.56 billion years old…the same age as the Moon and the Sun.

The speed of light is generally rounded down to 186,000 miles per second. In exact terms it is 299,792,458 m/s (metres per second – that is equal to 186,287.49 miles per second).

The dinosaurs became extinct before the Rockies or the Alps were formed.

If the Sun were the size of a beach ball then Jupiter would be the size of a golf ball and the Earth would be as small as a pea.