SME
Grade 7 Science
Energy flow and matter cycling in ecosystems
The main lesson, then each kind of problem it solves.
Energy flow and matter cycling in ecosystems
Main lesson
The carbon cycle
Use this for “How does carbon get from the air into an animal, and back?”
Producer, consumer or decomposer?
Use this for “Which organisms in the food web are primary consumers?”
Take one out of the food web
Use this for “What happens to the fox population if the rabbits disappear?”
A pesticide up the food chain
Use this for “Which animal ends up with the most pesticide in its body?”
Will the population grow or shrink?
Use this for “How would planting fruit trees affect the orangutan population?”