Across
- 5. An unassisted vision, without a telescope, microscope, or other device.
- 8. The range of wavelengths or frequencies over which electromagnetic radiation extends.
- 11. To give off.
- 12. The science and craft of creating, managing, planting, using, conserving and repairing forests
- 15. The surroundings or conditions in which a person, animal, or plant lives or operates.Monotremes
- 17. A house, or other place of residence.
- 19. mammals that lay eggs.
- 20. That lay eggs.
Down
- 1. A type of invisible light that is beyond violet on the spectrum
- 2. A shine or glow brightly
- 3. The distance from one peak of a wave to the next
- 4. A warm-blooded vertebrate animal
- 6. A particle representing a quantum of light
- 7. A light producing organ in a fireflies abdomen
- 9. An animal's natural coloring or form that enables it to blend in with its surroundings.
- 10. A negatively charged subatomic particle
- 13. Put something forward as a hypothesis.
- 14. A person who studies humans, plants, animals, and the environment.
- 16. The Center of an atom.
- 18. An occurring, or active at night.
- 21. A change or the process of change by which an organism or species becomes better suited to its environment.
