2. What are the two building material that plants require?

3. Why does a water molecule look a little like Micky Mouse?

4. If there are thousands of stomata per square inch of the lower epidermis a fairly typical leaf – how many would there be per square mm tens, hundreds or thousands?

5. Where in the leaf are most chloroplasts found?

6. What makes plants green?

7. Suggest why the sugar sucrose can be found in the form of crystals?

8. Before plants synthesise sucrose what other sugar molecules do they first synthesise?

9. Name three polysaccharides sugar is converted into in plants.

10. How many known types of plants are there? (well were there in 1946?)

11. How old are the Sequoias of California?

12. What is the link between coal, oil and sunlight?