An interactive challenge where the learner selects appropriate rock and sediment layers to build an impermeable ocean basin floor, demonstrating understanding of porosity and permeability.
Learn MotionWhy Oceans Don't Drain Into the Ground
Permeability and Porosity: The Key Barriers
Mastery Challenge: Seal the Basin
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Now it's your turn. You need to build the floor of an ocean basin that won't leak. You have gravel, sand, basalt, and shale available. Remember, gravel and sand are highly permeable—they let water flow right through. Basalt and shale are dense and impermeable. Choose wisely to create a seal that keeps the ocean contained. Test your design to see if it holds.
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