Across
- 2. A spiral shape, like the structure of DNA.
- 5. The science of particles that are smaller than atoms and their strange behaviors.
- 7. A form of energy resulting from the flow of electric charge.
- 8. A person trained to travel and work in space.
- 10. The lightest and most abundant element in the universe.
Down
- 1. Solid materials with a regular repeating pattern.
- 3. The process by which different kinds of living organisms have developed and diversified from earlier forms.
- 4. A machine capable of carrying out a complex series of actions automatically.
- 6. An instrument used to see tiny objects that are not visible to the naked eye.
- 9. Natural light displays seen in the sky, such as the Northern Lights.