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Slide Projector Activities
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This resource contains several mini-explorations using a slide projector as a light source to investigate light and the properties of images.

Self-Portrait Silhouettes: Activity 2
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In this activity, learners make a photographic image—without a camera!

On the Fringe (formerly Bridge Light)
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In this activity, learners trap a thin layer of air between two pieces of Plexiglas to produce rainbow-colored interference patterns.

Rainbow Refraction
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In this activity, learners will explore how light can refract or break apart into different colors.

Morphing Butterfly
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In this activity, learners explore how nanosized structures can create brilliant color.

Convection Current
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In this activity, learners make their own heat waves in an aquarium.

Moiré Patterns
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In this activity about light and perception, learners create and observe moire patterns.

Colored Shadows
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In this optics activity, learners discover that not all shadows are black. Learners explore human color perception by using colored lights to make additive color mixtures.

The Geophysical Light/Dark Cycle
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This is an activity (located on page 131 of the PDF) related to sleep and circadian rhythms as well as space travel.

Phantom Phlame
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In this trick, hold your hand over a burning candle without getting burned, by reflecting and transmitting the light of two candles. This activity is best suited as a demonstration.

Soap Bubble Shapes
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Learners explore three-dimensional geometric frames including cubes and tetrahedrons, as they create bubble wands with pipe cleaners and drinking straws.

Pupil
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In this activity, learners explore their eye pupils and how they change.

Magic Wand
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In this activity about light and perception, learners create pictures in thin air.

Hot Spot
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In this activity, learners explore the invisible infrared radiation from an electric heater.

Corner Reflector
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In this optics/mathematics activity, learners use two hinged mirrors to create a kaleidoscope that shows multiple images of an object.

Rainbow in the Room
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This activity generates learner excitement about light through the creation of a room-sized rainbow.

Pinhole Magnifier
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In this activity related to light and perception, learners use a pinhole in an index card as a magnifying glass to help their eye focus on a nearby object.

Polarized Sunglasses
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In this activity, learners explore how polarizing sunglasses can help diminish road glare.

Diffraction
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In this optics activity, demonstrate diffraction using a candle or a small bright flashlight bulb and a slide made with two pencils.

Touch the Spring (Lightbulb)
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In this activity, a lightbulb is placed in front of a concave mirror. The actual lightbulb is not visible to the viewer, but the viewer can see the mirror image of the lightbulb formed in space.