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Learners observe working lava lamps to understand how they work (included in PDF link).

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 activity, learners are asked to examine the differences between two materials in a pair.

In this activity, learners investigate carbon sequestration by creating a carbonated beverage out of apple juice and dry ice.