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Radial Chromatography
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How many colors make black? Gather as many water soluble black markers as you can find.

Kimchee Fermentation Chamber
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Learners make kimchee or sauerkraut, which is really just fermented cabbage, in a 2-liter plastic bottle.

Draft Detectives
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In this two part activity, learners become draft detectives by constructing their own draft catchers to detect drafts around windows or doors.
Mystery Jars: Make Your Own: Estimating and Counting
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Learners make a counting/estimating jar to exchange with friends or bring home.

Three Little Pigs
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In this activity, leaners explore building techniques by recreating the story of The Three Little Pigs.
Double or More
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Choose a recipe to double (or triple, quadruple, or halve). Show everyone the recipe and engage them in figuring out: How much will we need to increase the recipe to feed everyone?

Clay Beams and Columns
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In this activity, learners make or use pre-made clay beams to scale and proportion. Specifically, they discover that when you scale up proportionally (i.e.

Odors Aloft
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Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules.

Space Elevator
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In this activity, learners imagine what the world might look like if we could build an elevator to space!