1. Energy in Ecosystems

2. Against the clock!
Using the cards at your table produce as many different food chains as you can in 3mins!

3. Make a note of one of your food chains on the next page.

4. Now try a food web...

5. Match the words to organisms in your food web..
Predator
Primary Consumer
Producer
Omnivore
Herbivore
Secondary Consumer
Carnivore
Prey

6. Now try....
The Ecosystems wordbank and questions on page 17 of Torrance.

7. Watch this clip... Can you see a food chain?
Can you see a food chain?

8. Food Webs

9. What will happen if the barnacles are removed?

10. What will happen if the barnacles are removed?
There will be fewer Blenny
There will be more zooplankton

11. What will happen if the dog whelks are removed? Why?

12. What will happen if the dog whelks are removed?
There will be fewer Crabs
As they will have less food

13. What will happen if the dog whelks are removed?
There will be more limpets and mussels
As they will not be eaten by dog whelks

14. What will happen if the dog whelks are removed?
There will be fewer Periwinkles
As the crabs will have to eat more of them

15. Choose another organism, and explain the consequences of it was removed

16. Monster Crab Invasion!

17. Re-introduction of Beavers
Recently, beavers have been re-introduced to Scotland. Your task is to investigate how this re introduction will affect the ecosystem as a whole.

18. 2.3 Success Criteria
Relate the issue to the Key Area (Plant and Animal Interdependance)
Describe the biological issue.
Describe the effect of this issue on the ecosystem.

19. What do organisms compete for in their environments?
Animals Plants
WFS
WLN

20. Plants compete for water, light and soil nutrients

21. Animals compete for water, food and shelter

22. Competition Investigation
What factors might affect how well seeds germinate?