1. What did Ernest Rutherford discover in 1919?

2. Coal is made up mostly of which element?

3. What is one-half cubed?

4. The core of the Earth is made of nickel and which other element?

5. Which creatures are referred to as 'chiroptera'

6. What comes near to the Earth every 76 years?

7. Michael Faraday is best known for his work involving........

8. What is measured by the Beaufort Scale?

9. The most common element in the Earth's crust is

10. Which of the gases below would not be found in the Earth's atmosphere?