A habitat is where an organism lives - it is its home.
(but maybe not quite like that!).
A habitat must provide three things to be suitable for an organism:
1) The right sort of shelter. For example, the sea is no good for a robin as there's no nesting material for it and it can't swim!
2) The right sort of food. For example, an osprey eats fish, so it won't be found living in a desert.
3) A suitable mate. For example, if a rat swims to an island where there are no other rats, the rat species will not survive there once it dies.
So, in this activity you'll look at a habitat, and choose the most likely organism to live there, or you'll match up an organism with the best habitat for it.
Sound like fun? Let's go!