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!