Before you start
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Depth Dive Pilot a sub down the water column — predict what happens to pressure, light & temperature, then check. 
Adaptation Match Meet a deep-sea creature and its trait — predict which ocean zone it is built to survive in. 
Explorer’s Dive A path through all 16 kits — clear each stop, then descend to the next. 
Mixed Practice A short round across the kits you have played — brought back to make it stick. All activities
Predict-then-observe labs
Depth Dive Descend a zone at a time — predict pressure, light, and temperature (or read the gauges and name the zone), then check. Adaptation Match Huge eyes, a glowing lure, pressure-proof proteins, chemosynthesis — predict which depth each adaptation fits. Vent Food Web No sunlight this deep — so where does a food web start? Predict the energy base, then trace it up the trophic ladder. Teach the Cast Teach an ocean idea to a cast member still learning it — teaching makes it stick.
Practice & play
Mixed Practice A short round across the kits you have played — brought back to make it stick. DepthQuest Sprint Race your OWN best on what you already know. Timer optional, no penalty for a miss. Trick Questions Brain-teasers with a twist — spot why the obvious answer is a trap. Depth Duel 2–4 players take turns on one device — same questions, highest first-try score wins. Or open an online room. Progress Your levels, streak, and how each skill area is coming along — saved on this device. Progress report For grown-ups — a private on-device snapshot mapped to the skill areas. Export a CSV or print.
Concept Kits — 16 kits · 400 questions across ocean zones, marine life & conservation
Kit 1: Ocean Zones & Layers grades 4-5 · 25 questions · NGSS Kit 2: Marine Life & Habitats grades 4-5 · 25 questions · NGSS Kit 3: Ocean Currents & Tides grades 5-6 · 25 questions · NGSS Kit 4: Coral Reef Ecosystems grades 5-6 · 25 questions · NGSS Kit 5: Deep Sea Exploration grades 5-6 · 25 questions · NGSS Kit 6: Marine Conservation grades 6-7 · 25 questions · NGSS Kit 7: Ocean Chemistry & Acidification grades 6-7 · 25 questions · NGSS Kit 8: Marine Technology & Research grades 7-8 · 25 questions · NGSS Kit 9: Tidal Systems Coastal Ecology grades 6-7 · 25 questions · MS-ESS2-6 Kit 10: Marine Food Webs Energy grades 5-6 · 25 questions · MS-LS2-3 Kit 11: Ocean Floor Mapping Geology grades 6-7 · 25 questions · MS-ESS2-3 Kit 12: Marine Research Methods Careers grades 7-8 · 25 questions · MS-ETS1-1 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
More ways to play
😄 Brain break
Meet the cast — the characters who teach this
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Reef Sunlit zone — coral + photosynthesis-zone biodiversity -
Drift Twilight zone — bioluminescent + migratory species -
Press Midnight zone — pressure + cold + giant-squid scale -
Smoke Abyss zone — hydrothermal vents + chemosynthesis -
Trench Hadal zone — deepest trenches + extreme-adaptation -
Cling Intertidal zone — the strip of shore underwater at high tide and open air at low; life that clings between the tides -
Drizzle Marine snow — the constant gentle fall of food from the sunlit top to the dark deep (the biological pump) -
Gyre Ocean currents — the great moving conveyor carrying water, heat, and life in slow giant loops -
Neap Tides — the moon and sun pull the whole ocean; twice a day the sea rises and falls -
Sonar Sound in the sea — light dies fast underwater but sound travels far; send a click and read the echo
Ensemble stories — the cast together