Middle School Science Unit on Ecosystems. Built for G7 Ontario curriculum but can be adapted for many grades and courses.
Two of Three Power Point presentations (pptx) covering:
-The needs of living things
- Interactions between humans and ecosystems.
The presentation features diagrams and high quality illustrative images.
Slides also have detailed notes pages to allow teachers to explain the content in greater detail.
There are two more presentations and a student notebook available as part of a set or individually.