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In this activity (page 6 of the PDF), learners will observe both a chemical and a physical change.

This is a chemistry lab activity about solutions (page 6 of the PDF). Students make a limewater testing solution for carbon dioxide and explore the concepts of solubility and precipitates.

In this environmental science activity (page 4 of the PDF), learners use vinegar and chalk to observe the effect of acid rain on various building materials and plant life.

In this activity (page 13 of the PDF), learners discover how weathering and erosion change the Earth’s surface.