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Sound Charades
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In this game, learners create flash cards with an image on one side (of an animal, for example) and the sound that animal makes on the other.

TerrAqua Investigation Column: What is the Land-Water Connection?
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In this investigation, learners plant seeds in a 2-liter bottle filled with soil that is connected to a water source below. Over the next few weeks, learners observe how the plants grow.

Ice Tower Excavation
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In this activity, learners will pretend to be archaeologist using this chilling experience.

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

Instant Ice
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In this activity, learners observe a quick phase change as water rapidly goes from a liquid state to a solid state.

Decomposition Column
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In this activity, learners turn empty 2-liter bottles into a see-through compost container.