Chap 1 Vocab Crossword

2. An aquarium ecosystem where all the biological, chemical and physical factors are in harmony, creating a stable and healthy environment for aquatic life.
5. Anything that is related to water, lives in or on water, or takes place in water.
8. The study of organisms and their relationship to their environment and each other.
10. To add oxygen to something.
12. The process living things use to get energy from food.
13. People who regularly take part in activity they enjoy doing in their free time, just for fun. These activities are called “hobbies”. An example of a hobby is taking care of fish tanks.
14. The craft of designing and arranging aquatic plants, rocks, driftwood and other decorative elements inside an aquarium.
15. Something that is most common, usual or accepted at a particular time or place.
16. Something that is old-fashioned or outdated, and no longer useful or popular.
17. An adjective that means inherent or naturally belonging to something; essential to its nature.

1. An adjective that refers to products, foods or diets that are made primarily or entirely from plants, without animal ingredients.
3. An organism (living thing) of microscopic size, meaning they are too small to be seen without a microscope.
4. Something that is spread out or mixed in between other things.
6. Something made to look nice and not for a practical use.
7. A chemical compound that some bacteria can use for energy, helping them live and grow.
9. “Good enough” or “just enough for what is needed.”
11. Scientists who study plants.
15. The study of how living things’ bodies work, like how the heart beats or how the lungs help us breathe.