Biodiversity

We don´t know exactly how many species, or living things with similar characteristics, there are on our planet. Up to now, scientists  have discovered more than two millions different species, but there are still many more to discover.

Biodiversity can be defined as the enormous variety of living things. Some living things, such as bacteria, are microscopic, so we need a microscope to see them. Others, such as whales and trees are huge.

Task time 

• Think about three microscopic microorganisms and find out information about them. 

Our planet has unique qualities that are essential for life as we know it. Can you think about these essential things that make the Earth ideal for life?