Across
- 1. , the capital of bulgaria
- 3. , was a prime minister for 49 days
- 6. , it is the strongest muscle in your body
- 8. , record holder for the 50m breastroke.
- 9. , the inventor of the lightbulb
- 10. , how many states are there in the USA.
Down
- 2. , the inventor of the telephone
- 4. , who created E = MC squared
- 5. , the tallest volcano
- 7. , you would use it when drawing a straight line