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Showing results 101 to 120 of 181
Mirror Image
Source Institutions
In this activity, learners investigate procedural memory.
Bike Wheel Zoetrope
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In this activity (posted on April 18, 2011), learners follow the steps to construct a zoetrope, a device that produces an illusion of action from a rapid succession of static pictures, using a 16" bik
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.
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.
Why Are Two Eyes Better Than One?
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In this activity, learners explore how their depth perception would be affected if they only had one eye. Learners work in pairs and attempt to drop a penny in a cup with one eye covered.
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.
Smell the Difference
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In this two-part activity, learners use household items to smell the difference between some stereoisomers, or molecules which are mirror images of one another.
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.
Name That Frequency
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This activity was designed for blind learners, but all types of learners can model how vibrating particles, such as in a sound wave, bump into other particles causing them to vibrate, and that the vib
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.
Light Soda
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In this activity, learners sublimate dry ice and then taste the carbon dioxide gas.
Mapping the Homunculus
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In this activity, learners will explore how the human brain interprets environmental stimuli.
Auditory Acuity
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This activity (8th activity on the page) tests learners' ability to identify things using only the sense of hearing.
How Fast Are You?
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This activity is designed to let learners measure their reaction time or response time to something they see.
Your Body in Your Mind's Eye
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This activity is about how you form mental images of your body's position in space, independent of vision. Can you take a sip of water from a cup with your eyes closed?
Benham's Disk
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In this activity, learners make a Benham Top to explore visual illusions and optics.
Head, Shoulder, Knees and Toes...and Hands, Fingers and Back
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Are fingers the only place on the body where we use our sense of touch? In this activity (6th activity on the page), learners test the touch sensitivity of different parts of the body.
Depth Perception
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In this easy demonstration (3rd on the page), learners explore depth perception by conducting a test with two pencils.
Think Fast!
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This is a quick and simple demonstration about reflexes (fourth activity on the page). One learner stands behind a see-through barrier like a window or wire screen.
Two Ears are Better Than One: Sound Localization
Source Institutions
This activity (9th activity on the page) about hearing demonstrates to learners the importance of having two ears.