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In this chemistry demonstration, acid rain is simulated in a petri dish.

Learners add acid rain (nitric acid) to two cups that represent lakes. One cup contains limestone gravel and the other contains granite gravel.

The objective of this inquiry-based lesson is for learners to gain an understanding of how increasing ocean acidity can affect the calcification of marine organisms.

In this field study, learners discover how to collect data in the field and how their efforts can help certain animals, specifically, amphibians.

"What's in the Water" lets participants use tools to solve the mystery- what chemicals and compounds are in a sample of water?