The grounds of Leeson House provide a rich and varied range of habitats within which a wide range of smaller Biology units can be taught including

 Introduction to ecology and sampling techniques

Pond comparison study

"Mark and Recapture" study

Woodland studies 

By travelling further afield within Purbeck the following units can be taught

Vegetation succession at Studland Dunes

Freshwater ecology at West Mills on the River Piddle

Marine zonation at Kimmeridge Bay Marine Reserve

Heathland regeneration in Wareham Forest

 Inter and intra specfic competition and measuring Biomass.