Across
- 3. — The scientific name for the "Midnight Zone" (1,000–4,000m).
- 4. — The effect caused by Earth's rotation that makes currents curve.
- 5. — Process where one tectonic plate slides underneath another.
- 8. — A deep, steep-sided canyon in the ocean floor (e.g., Mariana).
- 9. — A large system of rotating ocean currents.
- 10. — Microscopic plant-like drifters that produce most of the ocean's oxygen.
Down
- 1. — Light produced by a chemical reaction within a living organism.
- 2. — The measure of the amount of dissolved salts in seawater.
- 6. — The type of tectonic boundary found at a Mid-Ocean Ridge (moving apart).
- 7. — The type of tide with the lowest variation, occurring during quarter moons.