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Showing results 2081 to 2089 of 2089

Spinning Cylinder: Make a triangle appear on a spinning wheel
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Spin a short piece of PVC pipe that's been marked up, and watch a triangle appear. Enjoy this optical illusion from the Exploratorium's Science Snack series.

Mission: Control!
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In this activity and game, learners will train to improve balance and spatial awareness by performing throwing and catching techniques on one foot.

Coffee Filter Rainbows
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In this activity about color, learners get to explore the process of chromatography. Right before their eyes, they can watch ordinary green and black ink turn into a literal rainbow of colors.

Penny Battery
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In this activity, learners light an LED with five cents. Learners use two different metals and some sour, salty water to create a cheap battery.

Vector Toy
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Walk a toy to the edge of its doom, maybe it'll fall off the edge of a table, but it will safely stop right before falling.

Where on Earth?
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Learners look at labels on items in the room to determine where each item was manufactured, then write about the item on an index card.

Popsicle Bridge
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In this activity, learners explore how engineering has impacted the development of bridges over time, including innovative designs and the challenge of creating bridges that become landmarks for a cit

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!

Secret Messages
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In this activity, learners use Teflon (PTFE) tape to write secret messages.