Question

Explain with an activiti that carbon dioxide and water are necessary for photosynthesis

Answer 1

1 . take two blotted plant or money plant of same size .

2. place one plant in sealed container(air tight) and inside it place potassium hydroxide solution

KOH solution would capture carbondioxide

3. place the second plant in open place

4. after 3-7 days plug a leaf from both and do the starch test

starch test could be done by placing leaf in alcohol solution and allow it to boil it in water bath then dropping iodine solution to it

you would find that the presence of starch in the plant that is placed in open .

hence carbon dioxide is needed for photosynthesis.

similarly you can explain a activity to demonstrate an activity showing water is necessary for photosynthesis .