Across
- 3. it was invented whe a chemist dropped a botlle that had previously contained liquid plastic (two words separated by a -).
- 5. surname of the inventor whose formula was used for the invention of the atomic bomb.
- 7. anna jarvis, who invented this day, wanted to make something special for her ...
- 8. it was invented by an engineer who noticed some plant burrs sticking to his dog.
Down
- 1. this is the type of add which Ethan Zuckerberg invented.
- 2. she´s the girl who won the BHP Billiton Awards.
- 4. is an invention which help us warm and melt food.
- 6. is the one who invents things.