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In this activity, learners "dance" (move back and forth at varying speeds) by reading a graph. This is a kinesthetic way to help learners interpret and understand how motion is graphed.

In this activity, learners play a game that models what happens as stem cells differentiate into different cell types.

In this activity, learners construct a cereal chain as a model of how proteins are made in the cell.

In this activity on page 1 of the PDF, learners compare the relative sizes of biological objects (like DNA and bacteria) that can't be seen by the naked eye.

In this activity related to magnetism and electricity, learners observe as two parallel, current-carrying wires exert forces on each other.

In this activity related to magnetism and electricity, learners create a magnetic field that's stronger than the Earth's magnetic field.