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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.

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.

In this activity, learners create models of erosion and floods and learn to recognize both in their environment.

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

In this activity, learners use sand and ice cubes to create a model of permafrost and the effects of the ice melting through the surface.

In this hands-on nature activity, learners observe the emergence of leaves and flowers. Branches from trees and bushes are collected in the early spring, brought indoors, and placed in water.