Across
- 4. An instrument used to see tiny objects.
- 5. A device used for typing documents before computers became common.
- 8. A global network that connects computers worldwide.
- 9. A household appliance used to keep food and drinks cold and fresh.
- 11. The flow of electric charge that powers modern life.
- 13. A flying vehicle with wings.
- 14. A method of preventing disease by stimulating immunity.
- 15. A device used for long-distance voice communication.
Down
- 1. A device used to capture photographs or record videos.
- 2. A device used to perform mathematical computations quickly and accurately.
- 3. An electronic device used for processing data.
- 6. A technology that transmits sound through electromagnetic waves.
- 7. A device that transmits moving images and sound.
- 10. The first widely used antibiotic.
- 12. An instrument used to observe distant objects in space.