Draw a square around the lid of the pizza box about 2 inches away from the sides. Cut along three of the lines -- on the sides and front edge of the box -- leaving the fourth line along the box's back hinge uncut.
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No need for the freezer, you'll learn about freezing and melting in this activity.
See how worms keep your garden healthy.
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Get an up-close and near “real-time” view of our planet Earth.