Choose the correct word to complete the sentences.

1. The twins both want to be sciences/scientists when they’re older.

2. They are always asking questions, they’re very curious/curiosity.

3. He has an amazing able/ability with languages, I don’t know how he picks them up so quickly.

4. Penicillin has been used for treatment/treating infections since the 1940s.

5. I don’t think many people understand the seriousness/serious of the problem.

6. Science programmes on TV have really gained in popular/popularity in recent years.

7. It’s incredible how quickly living/live things can adapt to survive in new environments.

8. Without the discovery/discover of penicillin, we would be living in a very different world now.