91�ȱ�

Practical skills

Practical skills are needed to use apparatus correctly, skillfully and safely in order to obtain accurate, reliable results.

The skills needed to carry out the following practicals may be assessed:

• B1 – make a temporary slide and use a light microscope to examine and identify the structures of a typical plant and animal cell.
• B2 – investigate the energy content of food by burning food samples.
• B3 – investigate the need for light and chlorophyll in photosynthesis by testing a leaf for starch.