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Child developmental milestones from 18 months to 8 years. Older milestones will be added as they are ready. These are th...

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The Refraction of Light lab uses a refraction cell and a ray box to investigate Snell’s Law of Refraction, total interna...

A process called Fourier analysis can be used to mathematically break down any image into a number of basic components. ...

This is an adaptation of a common clinical test for color vision disorders. Students arrange colored discs then analyze ...

The Image Formation Using Lenses lab uses an optical bench to determine the focal length of a converging lens and to inv...

TrainSet 3D is an homage to that classic HyperCard stack. Design your own tracks and run the steam locomotive around th...

A Yes-No procedure, combined with the method of limits, is used to measure the size of different visual illusions—the Mü...

The Joule Heating lab uses a calorimeter to investigate electrical energy and thermal energy. It is part of Polyhedron P...

A magnitude estimation procedure is used to measure the apparent distance between a reference point and a figure that ap...