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Gas Producing Micro-Reaction
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In this chemistry activity, learners use common chemicals and metals to examine reactions that produce gaseous substances.
Measure Your Ability to See
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In this exercise (Activity #2 on page), learners test their distance vision to evaluate their overall eyesight.
Stop: Practice Stopping at Vehicle Intersections
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This is an online game about stopping distance. Learners choose one of three vehicles and one of three speeds.
Jump on Tens: Counting Fun
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Learners combine counting, multiples, and number patterns with jumping up and down. To start, pick a counting number.
Holding Charge
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In this trick, learners discover how to stick a straw to the palm of their hand, window door, or anywhere using static electricity.
How to Test The Strength of Shapes
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In this activity, learners explore the strength of different shapes. Fold paper into triangles, squares, and other shapes, then experiment with how much weight they can hold.
Flinker
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In this activity, learners make a foam packing peanut "flink"--neither float away nor sink--in water. Learners experiment with materials to make a Flinker that "flinks" for 10 seconds.
Why is the Sky Purple?
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This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.
Afterimage
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In this optics activity, learners investigate afterimages.
Sock It To Me!
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In this activity (7th activity on the page), learners use their sense of touch to identify mystery objects hidden in socks.