1. A person who suffers from insomnia has what wrong with them?
2. The Larynx is another name for what?
3. Where would you find your biceps and triceps?
4. What name is given to the outer layer of the Earth's atmosphere?
5. Which English scientist is best known for his work on GRAVITY?
6. What does an apiarist study or keep?
7. What is the first element in the periodic table
8. Marie Curie is best known for her work involving
9. Sir Alexander Fleming (1881- 1955) is best remembered for..
10. Topic: Elements

Which is the odd one out from the gases shown below?