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Showing results 141 to 160 of 230
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Our Sense of Sight: How We Perceive Movement, Depth and Illusions
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In this activity, learners investigate visual perception as well as plan and conduct their own experiments.
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Kaleidoscope
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In this activity, learners investigate the reflective properties of light and mirrors as they make a kaleidoscope.
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Liquid Lens
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In this activity, learners discover that they can create a lens from a water drop. Learners test their lens by looking at words or pictures.
What Does Life Need to Live?
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In this astrobiology activity (on page 11 of the PDF), learners consider what organisms need in order to live (water, nutrients, and energy).
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Mirror Image
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In this activity, learners investigate procedural memory.
Guiding Light
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In this optics activity, learners use glass and water to demonstrate total internal reflection (TIR).
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House Warming
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In this physical sciences activity, learners explore how passive solar design increases energy efficiency.
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Rainbow in the Room
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This activity generates learner excitement about light through the creation of a room-sized rainbow.
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Sliding Gray Step
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How can you make one shade of gray look like two? By putting it against two different color backgrounds! This activity allows learners to perform this sleight of hand very easily.
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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.
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It's all Done with Mirrors
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This fun and simple hands-on astronomy activity illustrates the path of light as it reflects off of mirrors and how this is used in telescopes.
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Urine the Know
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In this activity on page 5 of the PDF, learners compare water with artificial urine to see how urinalysis works. Learners use urinalysis test strips to test for glucose and protein in the fake urine.
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Invisible Sunblock
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This is a hands-on activity exploring how nanoscale particles are used in mineral sunblocks to increase their transparency.
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Moiré Patterns
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In this activity about light and perception, learners create and observe moire patterns.
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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.
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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.
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Give and Take
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In this activity, learners explore liquid crystals, light and temperature. Using a postcard made of temperature-sensitive liquid crystal material, learners monitor temperature changes.
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Bending Light
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In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it.
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Bring it into Focus
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In this activity (page 2 of PDF), learners play with a lens and a piece of paper to focus an image on the paper. Learners look at different things, and see how the lenses affect the image.
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Finding the Size of the Sun and Moon
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In this activity, learners build a simple pinhole viewer. They use this apparatus to project images from a variety of light sources, including a candle, the Sun, and the Moon.