Articles liés à Focus Pocus: Grades 5-10

Focus Pocus: Grades 5-10 - Couverture souple

Marson, Ronald Jay

 
9780941008426: Focus Pocus: Grades 5-10

Synopsis

Make a canning-ring projector, a washer-lens reducer, a beverage-bottle magnifier, a soda-straw microscope, a lens platform to trace the path of refracting light rays, even a working mechanical eye that probes the mystery of nearsighted and farsighted vision. Explore angular size and graph visual acuity. Discover the inverse relationship between actual distance and apparent size.

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