An investigation into the need for light and chlorophyll in photosynthesis by testing a leaf for starch.

How to investigate the energy content of food by burning food samples.

How to investigate the effect of temperature on the action of an enzyme.

How to use quadrats to investigate the abundance of plants and/or animals in a habitat.

How to investigate the process of osmosis by measuring the change in length or mass of plant tissue or model cells using Visking tubing.

How to use a potometer (bubble and weight potometer) to investigate the factors affecting the rate of water uptake by a plant and washing line method to investigate the factors affecting the rate of water loss from leaves.