Lesson starter Complete page 7 in your booklet:

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Presentation transcript:

Lesson starter Complete page 7 in your booklet: Fill out the table giving a reason for each instruction and answer the 2 questions

Conditions for Photosynthesis

Today we are going to.. Discuss the conditions for photosynthesis Carry out the starch test on plants in different conditions and discuss the findings

What do we need for photosynthesis to take place What do we need for photosynthesis to take place? What would happen if we removed any one of these?

1 plant has been left in a cupboard and the other placed at the window

Instructions- work in pairs Set up a tripod stand, Bunsen burner and a beaker filled with 100 mls of water and place the leaves in the water- I will come and light the Bunsen Boil the leaf in the water for 2 minutes TURN THE BUNSEN BURNER OFF Place the leaf in a test tube of ethanol then place the test tube in the beaker of boiling water- you will notice the ethanol starting to go green Take the leaf out of the ethanol and spread it across the white tile Add a few drops of iodine What do you notice?

Describe your results on page 9 of your workbook Conclusion Do plants need light to photosynthesise? How do we know? Describe your results on page 9 of your workbook