Across
- 3. any one of thousands of small planets that circle around the sun
- 6. the qualities of an object that affect how easily it is able to move through the air
- 8. a science that deals with airplanes and flying
- 10. using oxygen
- 12. of or relating to the production of electricity by using machines that are powered by moving water
Down
- 1. to slide on a wet road because a thin layer of water on the road causes the tires to lose contact with it
- 2. a person who travels in a spacecraft into outer space
- 4. something that has a very bad effect or result
- 5. a pipe usually in the street that provides water especially for putting out fires
- 7. to remove water or moisture from (something, such as food)
- 9. a symbol * that is used in printed text especially to tell someone to read a note that can be found at the bottom of a page
- 10. the scientific study of stars, planets, and other objects in outer space
- 11. performed in the air