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To Dye For
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Learners add two dyes to mineral oil and water, and then compare their miscibility (how well they mix) in each.
Miscibility
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Learners observe a bottle containing water and oil. They are invited to pick up the bottle and mix the contents together.
Water Ways
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In this activity (on page 2 of the PDF), learners explore surface tension by adding pennies to cups which are "full" of plain water or soapy water.