Across
- 1. It has many applications in our daily life.
- 4. Cars have internal combustion ________.
- 5. It prevents food from spoiling.
- 6. It was discovered by Alexander Fleming.
- 8. Big city life wouldn't be posible without it.
- 9. We can draw and write on it.
- 10. First moving pictures were seen through it.
Down
- 2. Without it, there woudn't be light at night.
- 3. It prints text on a wide scale.
- 7. Sailors still use it for navigating.