Across
- 1. Fuel is sometimes measured in ______.
- 4. Their solar-powered airplane ______ less than a car.
- 7. Solar-power does not cause _________.
- 9. Sunlight provides _____-_____.
- 10. Solar-power makes ________ power from sunlight.
- 11. Piccard & Borschberg ________ flew a solar-powered airplane.
- 12. Piccard & Borschberg will build _______ solar-powered airplane.
Down
- 2. __________ is improving every day.
- 3. Piccard & Borschberg ____ from Europe to Africa.
- 5. A ___ is a type of airplane.
- 6. The airplane will ____ at the airport.
- 8. Some day, __________ airplanes might run on sunlight.