Photosynthesis Investigation Worksheet

Name:

Date:

🔬 Part 1: Our Experiment Results

1. What did you observe happening in your sealed bag with the leaf?

2. What gas do you think was being produced by the leaf? Circle your answer:

Carbon dioxide

Oxygen

Nitrogen

Water vapour

3. Why did we add baking soda to the water in our experiment?

To make the water taste better

To provide carbon dioxide for the leaf

To make the leaf float

To clean the leaf

4. What do you think would happen if we put the same experiment in a dark cupboard? Explain your prediction:

5. Complete this sentence about photosynthesis:

Plants use __________, __________ and __________ to make __________ and release __________.

6. Why is photosynthesis important for humans and animals? Tick all that apply:

Plants produce oxygen that we breathe

Plants make food that we can eat

Plants remove carbon dioxide from the air

Plants make the soil more colourful

7. Draw and label a simple diagram showing photosynthesis. Include: sunlight, leaf, water, carbon dioxide, oxygen, and glucose.

8. In your own words, explain what photosynthesis is: