Across
- 4. the invention which can draw perfect circles
- 5. the scientist who invented the light bulb
- 7. the invention which solves difficult math equations
- 8. a transport which travels super fast
- 9. something that allows you see very little things
- 10. the piece of furniture where you sleep
Down
- 1. the instrument which have white and black keys
- 2. a gadget that helps you to remove screws
- 3. a place where scientists work
- 6. the scientist who invented X-ray and won a Nobel for it