Chemistry Brainteasers

Test your chemistry knowledge with these brainteasers from St John’s Chemistry Tutor Professor Richard Compton and his research group.

1. How could you charge your phone using lemons as the energy source?

2. How can you measure the size of a molecule?

3. Can you estimate the minimum mass of graphene required to cover the entire surface of Earth?

4. What is the only letter that does not appear in the periodic table?

5. How do you make green fire?

6. How can you make an invisible ink?