Depth Duel

Pick a kit — then 2–4 players take turns on one device. Same questions for everyone; highest first-try score wins.

Choose a kit

Kit 1: Ocean Zones & Layers grades 4-5 · 25 questions Kit 2: Marine Life & Habitats grades 4-5 · 25 questions Kit 3: Ocean Currents & Tides grades 5-6 · 25 questions Kit 4: Coral Reef Ecosystems grades 5-6 · 25 questions Kit 5: Deep Sea Exploration grades 5-6 · 25 questions Kit 6: Marine Conservation grades 6-7 · 25 questions Kit 7: Ocean Chemistry & Acidification grades 6-7 · 25 questions Kit 8: Marine Technology & Research grades 7-8 · 25 questions Kit 9: Tidal Systems Coastal Ecology grades 6-7 · 25 questions Kit 10: Marine Food Webs Energy grades 5-6 · 25 questions Kit 11: Ocean Floor Mapping Geology grades 6-7 · 25 questions Kit 12: Marine Research Methods Careers grades 7-8 · 25 questions Kit 13: Cross-Topic Connections grades 5-6 · 25 questions Kit 14: Real-World Applications grades 6-7 · 25 questions Kit 15: Misconceptions & Reasoning grades 6-7 · 25 questions Kit 16: Advanced Synthesis grades 7-8 · 25 questions