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In this activity, groups of learners work together to create edible models of chemicals involved in autotrophic nutrition.

In this activity related to climate change and data analysis, learners examine temperature and precipitation data to determine if climate variations are due to El Niño.

Using simple, inexpensive items, learners build and test submarine models.

In this activity, learners explore the factors that tend to resist changes in pH of the ocean and why the ocean is becoming more acidic.