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This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises.

In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.

In this water activity, learners discover ways to move water across the water table.

In this design challenge activity, learners invent an emergency shelter that can fit a person and is sturdy and quick to build.