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LIGHT & OPTICS, continued
LED Light Blocks
This unique design includes end adapters that create thin light beams that can be directed through optical blocks to study reflection, refraction and focal length. Arrange the beams as parallel, diffused or convergent, or remove adapters to create wider beams of light for color mixing. A magnet is attached to the bottom so the versatile blocks can be used for classroom demonstrations on a whiteboard. 41⁄2" x 11⁄4" x 3⁄4".
AP7771 I $32.70
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Magnetic Optics and Ray Box Set
This magnetic optics set is for use on any steel whiteboard to demonstrate optics concepts. Durable, double-ended box has
a fan-cooled halogen lamp. One end has
a cylindrical lens and plate slots to create parallel beams while the other accepts color filters and adjustable mirrors to study color mixing. Includes acrylic lenses and prisms,
a hollow cell, mirrors, color filters and paddles, an experiment manual and more in a convenient storage box.
AP7823 I $229.30
Refraction and Total Internal Reflection—Classroom Set
Students track a laser beam path as it travels from air into red gelatin. Beams in gelatin let students draw accurate refraction diagrams, which move closer to the normal line on the diagram as light slows and father away as light speeds up until total internal reflection. Measure angles of incidence and refraction to calculate the speed of light
in gelatin with Snell’s Law. Includes work- sheets, Teacher Notes, sample data and necessary supplies.
AP7270 I $70.85
Refraction Dish, Semicircle
Filled with water or other liquids, these semi- circular transparent refraction dishes become perfect cylindrical lenses. Use them for a vari- ety of classic optical experiments. Excellent for comparing the refraction rates of various liquids. The tanks are made of clear plastic and have a radius of 43⁄4" and a depth of 1".
AP6039 I $3.35
LIGHT & OPTICS
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