Question

How will you show with an activity that transpiration occurs through leaves?

Answer 1

Transpiration:

1. The process of elimination of water vapour from the aerial parts of the plants like leaves is called transpiration.

Activity that shows transpiration occurs through leaves:

1. Take a potted plant with at least two branches.
2. Remove all the leaves from one of the branches and tie a plastic bag around it.
3. Tie the other plastic bag around a branch with many leaves.

Observation:

1. We will notice small droplets of water inside the plastic bags that were tied around the branch with the leaves, while the other plastic bag does not have any droplets.
2. This shows that water vapour is released by the leaves.
3. Thus transpiration has occurred.