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In this meteorology activity, learners construct simple devices to measure the direction and speed of wind.

In this activity, learners design and build a simple wind vane —one of the oldest kinds of weather tools— and use it to show wind direction.

In this activity, learners use crayons to draw conclusions about rocks and the rock cycle.

In this demonstration, learners can observe a number of small convection cells generated from a mixture of aluminum powder and silicon oil on a hot plate.

In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.