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Showing results 1121 to 1140 of 1643
Shrinking Cups
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This is a quick activity (on page 2 of the PDF under Gecko Feet Activity) about the forces of gravity and surface tension and how their behavior is influenced by size.
Arrows
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In this activity, learners surprise their eyes with an optical illusion involving arrows made out of pipe cleaners.
Squeeze Me!
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In this math activity, learners guess a secret number between 1 and 100 in a three-player game.
Drops on a Penny
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In this activity, challenge learners to predict and investigate how many water drops they can fit on one penny.
Magic Turtle Squares
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In this math activity, learners create a magic turtle where all the rows, columns and diagonals add up to fifteen.
Light as Air
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In this physics activity (page 6 of the PDF), learners will demonstrate air has weight by comparing an inflated balloon to a deflated one.
A Penny Saved is a Penny Heard
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In this activity (11th activity on the page), learners use pennies to test their hearing acuity.
Drop IT!: Depth Perception
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These two activities (4th on the page) demonstrate the importance of two eyes in judging depth.
Ready to Observe: Enhance Your Telescope Experience
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This fun hands-on astronomy activity uses a variety of simple props to help learners understand why they see what they see in a telescope.
Seeing in the Dark
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In this activity (17th on the page), learners investigate why you cannot see colors in dim light.
Accommodating Accommodation
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In this demonstration (18th on the page), learners conduct a simple test to explore how the cornea refracts light, which is further bent by the eye lens through a process known as accommodation.
Shifting Backgrounds, Shifting Images
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In this quick activity/demonstration (5th on the page), learners explore depth perception.
Hunger Signals
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This game explores the different reasons we choose to eat, and helps us be aware of when our body needs food and when it does not.
Cleaning Air with Balloons
Learners observe a simple balloon model of an electrostatic precipitator. These devices are used for pollutant recovery in cleaning industrial air pollution.
Drinking Straw Pulse Measurer
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In this health activity, learners create a device so that they not only feel their heartbeat, but also see it, using a straw and some clay.
Model Eardrum
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In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.
Thaumatrope
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In this activity, learners make an optical illusion toy from the 1800s to explore persistence of vision.
Cave in a Cup
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In this activity (page 2 of PDF under GPS: Cave Swallows Activity), learners will model how caves are formed by placing one piece of chalk in a cup of vinegar and another piece in a cup of water, then
Static Cling
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In this activity, learners investigate static electricity using everyday objects at four different stations.
Melts in Your Bag, Not in Your Hand
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In this activity, learners use chocolate to explore how the Sun transfers heat to the Earth through radiation.