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Exploring the Universe: Filtered Light
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"Exploring the Universe: Filtered Light" demonstrates how scientists can use telescopes and other tools to capture and filter different energies of light to study the universe.
Make a Green Gumball Black
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In this optics activity, learners use a shoebox, colored cellophane and sunlight to "change" the colors of gumballs. Learners will be surprised when the green and blue gumballs appear black!
Mix-N-Match Light
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This is an online exhibit about color perception. Learners set a random background color and then try to mix red, blue, and green light to match.
Color Vision
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In this online activity, learners make a whole rainbow by mixing red, green, and blue light. They can change the wavelength of a monochromatic beam or they can filter white light.
Make Money Appear Before Your Eyes
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In this optics activity, learners use water to make a coin "appear" and "disappear." Use this activity to demonstrate how light refracts and introduce light as waves.
Polarized Light Mosaic
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In this activity, learners use transparent tape and polarizing material to create and project beautifully colored patterns reminiscent of abstract or geometric stained glass windows--no glass required
Release the Rainbow
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In this activity, learners create a water prism to break light into the seven colors of the rainbow.
Views From Windows
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In this activity, learners use their imaginations and picture a scene in their heads.
Kaleidoscope
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In this activity, learners investigate the reflective properties of light and mirrors as they make a kaleidoscope.
Glowing Tonic
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In this sunny day activity, learners compare how a cup of water and a cup of tonic water reflect or refract light in the sun.
Mix and Match
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In this optics activity, learners explore color by examining color dots through colored water and the light of a flashlight.
Light is Made of Colors
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Learners observe different light sources, outdoors and indoors, using prism glasses (diffraction glasses) and color filters.
Make a Rainbow
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In this activity, learners will explore light and rainbows with this easy setup! Learners will only need a cup of water, some paper and a flashlight.
Paper Lanterns
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In this activity, learners explore light and shadows by creating a lantern they can keep on their nightstand.
Rainbow Refraction
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In this activity, learners will explore how light can refract or break apart into different colors.
Changing Colors
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In this activity, learners will explore how different colors of lights interact with objects around them. Will a blue object stay blue with a red filter?
Morphing Butterfly
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In this activity, learners explore how nanosized structures can create brilliant color.
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.
Flashlight Play
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In this activity, young learners will explore light and darkness through flashlight play.
Nebula in a Jar
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In this activity, learners will build a model of a nebula using cotton balls and colored water. Astronomers photograph nebulas and add colors to provide information about the nebula's composition.