Across
- 4. To finish all of something
- 5. Energy that can be replaced naturally
- 6. Power from moving air
- 10. Expressing an opinion: “I ___ this will happen.”
- 14. Energy that does not pollute
- 15. Portable touch-screen devices
- 16. When machines can “think”
- 21. A phrase for slight doubt: “I don’t ___ so.”
Down
- 1. Hand-held communication devices
- 2. Three-dimensional innovation
- 3. How far a car goes on little gas
- 7. Word for the progress of new inventions
- 8. Natural gas used as energy
- 9. Cars that use advanced computer systems
- 10. Movement of people or goods
- 11. Another way to say “suppose” or “guess”
- 12. A word meaning “maybe” or “possibly”
- 13. Power from the sun
- 17. Tiny programs for phones or tablets
- 18. Portable computers smaller than laptops
- 19. Appliances or machines that use less power
- 20. The study and use of science in industry