1. Limiting Factors in Photosynthesis
IGCSE Combined Science

2. Group work – concept cartoons!

3. Rate of photosynthesis

4. Now have a look at the demonstration of Elodea!
Try and answer the following questions as you are given the demonstration
What are the effects of changing:
Carbon dioxide concentration
Temperature
Light intensity
Be able to give a scientific explanation for each of these factors as well!

5. What happens when we change these factors?

6. Rate of photosynthesis

7. Group activity!
Can you make a poster summarising the effect of changing
Light intensity
Carbon dioxide concentration
Temperature
Your poster must include a sketch graph for each three factors and an explanation of why they affect the rate of photosynthesis!

8. finished photosynthesis!
YAAAAY!! We´ve
finished photosynthesis!
Copy and complete the following sentences based on your OVERALL understanding of the photosynthesis topic so far...
Something I have enjoyed learning is...
Something I find difficult is...
An example of an exam question could be...