Congratulations, you made it!

How do you think you have gotten on? Now is a great opportunity to asses your answers, flagging areas you feel you’re not confident on, questions you were unable to answer and specific questions that you may need additional support in. After this, you may even surprise yourself with answering flagged questions correctly! It’s important to flag these areas of the mini exam before reviewing the answers below.

GCSE CHEMISTRY:

1. Aluminium cannot be extracted from its ore by heating with carbon becasue aluminium is more reactive than carbon. However, it can be extracted by electrolysis because it’s a highly reactive metal.
   
   
2. C
   
   
3. B
   
   
4. C

GCSE BIOLOGY:

1. Heavy metals, pesticides and herbicides and petroleum products
   
   
2. Animals will think it is a hornet, therefore animals will avoid the risk of being stung.
   
   
3. B
   
   
4. The lens is too rounded and it focuses light before the retina / bends or refracts light too much
   
   

A-LEVEL CHEMISTRY

1. C
   
   
2. There is only a gradual or steady increase in successive ionisation energies
   
   
3. N
   
   
4. D
   
   

A-LEVEL BIOLOGY

1. Work in a clean environment like a laminar flow hood / Wear sterile gloves and other PPE / Sterilise equipment before use / Practice aseptic technique while handling the agar plate and blood sample
   
   
2. D
   
   
3. D
   
   
4. Translation