Case of the Prize-Winning Plants, Part 3 | NASA SciFiles

Everyone's green thumb is put to the test as the Tree House Detectives attempt to grow award-winning pineapple plants for the upcoming state fair. The tree house becomes a greenhouse as the detectives experiment with soil, plant life cycles, light, CO2 and even genetics to grow the perfect plant. Follow along with Kali as she visits the beautiful islands of Hawaii to explore a rainforest, a pineapple plantation and a volcano where she learns about volcanic soil.

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