B2 – investigate the energy content of food by burning food samples.
B3 – investigate the effect of temperature on the action of an enzyme.
B4 – use quadrats to investigate the abundance of plants and/or animals in a habitat.
B5 – investigate the process of osmosis by measuring the change in length or mass of plant tissue or model cells using Visking tubing.
B6 – 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.