Across
- 4. To move smoothly and quietly through the air, like a bird without flapping its wings.
- 8. When something is permitted or permitted to happen.
- 10. To help or hold something up, or provide help for something.
- 11. To show that something is true by giving facts or evidence.
- 12. The distance from the tip of one wing to the tip of the other wing.
- 14. A push or pull on something, like gravity or wind.
- 15. A device that slows down a person or object falling from the sky, made of fabric.
- 16. How heavy something is, or the force that gravity puts on an object.
Down
- 1. To gradually change or develop over time.
- 2. To move something up and down quickly, like how a bird moves its wings.
- 3. A special characteristic or quality of something.
- 5. Empty inside, like a tube or a space.
- 6. A change that helps a living thing survive better in its environment.
- 7. Not much of something, restricted in amount or number.
- 9. The action of flying through the air, like how birds or airplanes move.
- 10. To fly high in the air, often with little effort.
- 13. Happening before the expected time, or in the beginning.