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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.
Spherical Reflections
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In this art meets science activity, learners pack silver, ball-shaped ornaments in a single layer in a box to create an array of spherical reflectors.
Mirrors and Images
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In this optics activity, learners explore how many objects they can see in a set of mirrors (hinged like a book) at various angles.
CD Spectroscope
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In this activity, learners use an old CD to construct a spectroscope, a device that separates light into its component colors.
Morphing Butterfly
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In this activity, learners explore how nanosized structures can create brilliant color.
Pinhole Viewer
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In this activity, learners discuss and investigate how cameras, telescopes, and their own eyes use light in similar ways.
Earth's Energy Cycle: Albedo
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In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.
Cylindrical Mirror
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In this activity, learners create a cylindrical mirror to see themselves as others see them.
Polarized Light
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In this optics activity, learners experiment with polarizers (small dark rectangles) to examine light intensity.
Hot Spot
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In this activity, learners explore the invisible infrared radiation from an electric heater.
Critical Angle
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In this optics activity, learners examine how a transparent material such as glass or water can actually reflect light better than any mirror.
Kaleidoscope
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In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors).
Make a Light Fountain
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In this optics activity, learners make a "light fountain" from a clear plastic bottle, flashlight, and other simple materials.
See the Light
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In this three-part activity, learners conduct simple experiments to see how light refracts and reflects, and how colors of light affect what we see.
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.
Mirrorly a Window
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In this activity about light and reflection, learners discover that what you see is often affected by what you expect to see.
Disappearing Glass Rods
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In this optics activity, learners discover how they can make glass objects "disappear." Learners submerge glass objects like stirring rods into a beaker of Wesson™ oil to explore how the principles of
Transparent Gelatin
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In this optics activity, learners explore how they can make gelatin stop light, but not stop them from seeing fruit suspended within.
Splitting White Light
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In this optics activity, learners split white light into all its component colors using three household items: a compact disc, dishwashing liquid, and a hose (outside).
Guiding Light
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In this optics activity, learners use glass and water to demonstrate total internal reflection (TIR).