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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.
The Liquid Rainbow
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Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube.
Beam Me Up!
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This is a quick activity (on page 2 of the PDF under Stained Glass Activity) about the "Tyndall effect," the scattering of visible light when it hits very small dispersed particles.
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.
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.
See the World Through Color-Filtering Lenses
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In this activity, learners examine how colored lenses act like filters and absorb all colors of light except for the color of the lenses.
Easy PEAsy Seed Germination
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In this activity, learners determine the necessary conditions for pea seed germination.
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.
Camera Projector
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In this activity (posted on March 14, 2011), learners follow the steps to construct a camera projector to explore lenses and refraction.
Convection Current
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In this activity, learners make their own heat waves in an aquarium.
Do Plants Need Light?
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In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.
How can You Demonstrate the Efficiency of Different Light Bulbs?
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In this activity, learners actually feel the difference in energy required to light two different types of light bulbs: incandescent light and LEDs.
Periscope
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In this activity, learners construct a device that allows them to look over ledges or around corners.
The Primary Colors of Light
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In this activity, learners work in groups of four to explore light. Learners create new colors from the primary colors of light from flashlights covered in theatrical gels or cellophane.
Stroboscope
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In this activity (posted on March 20, 2011), learners follow the steps to construct a stroboscope, a device that exploits the persistence of vision to make moving objects appear slow or stationary.
Light and Sound
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In this four-part activity, learners explore light and sound through a variety of hands-on investigations.
Laser Jello
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In this activity, learners use gelatin as a lens to investigate the properties of laser light.
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.
Periscope
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In this optics activity, learners build a spy tool to secretly view things over walls or around corners.