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Showing results 581 to 600 of 874

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In this activity, learners mix water, cooking oil, and liquid food coloring to create beautiful colored designs in a cup. Use this activity to explore liquid density and solubility.

$1 - $5 per student Ages 6 - 11 5 to 10 minutes
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In this delicious activity, learners get to make, taste-test and compare their own "brands" of homemade strawberry ice cream.

$1 - $5 per student Ages 6 - 11 45 to 60 minutes
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In this activity, learners create a tiny electric, motorized dancer. Learners use the interactions of magnetism and electric current to make a wire spin, while displaying the Lorentz Force in action.

$1 - $5 per student Ages 8 - 18 30 to 45 minutes
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In this activity, learners conduct three experiments to examine temperature, the different stages of the water cycle, and how convection creates wind.

$1 - $5 per group Ages 4 - 11 45 to 60 minutes
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In this activity (on page 6 of the PDF), learners plot the path of the sun's apparent movement across the sky on two days, with the second day occurring two or three months after the first.

$1 - $5 per group Ages 8 - 14 1 to 7 days
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In this activity (on page 2 of the PDF), learners make a plastic protein polymer from milk. Adding vinegar to milk causes the protein casein to solidify or curdle.

$1 - $5 per student Ages 6 - 14 1 to 7 days
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In this activity, learners explore how hot and cold water move. Learners observe that temperature and density affect how liquids rise and fall.

$1 - $5 per student Ages 4 - 11 45 to 60 minutes
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In this activity about the relationship between food and energy (page 1 of PDF), learners observe and quantify the growth of yeast when it is given table sugar as a food source.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this engineering activity, challenge learners to design a car using only 3 straws, 4 Lifesavers™, 1 piece of paper, 2 paper clips, tape, and scissors.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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In this activity (Lesson 1), learners work in groups to create tide simulations.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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Have fun with additive mixing! Observe what happens when the three primary colors of light--red, green and blue--are mixed together, resulting in white light.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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With a magnet, iron fillings, and a bottle, you can create a cool demonstration about magnetic lines of force: the fillings will arrange themselves within the magnet's magnetic field.

$1 - $5 per student Ages 6 - 18 Under 5 minutes
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In this activity, learners explore how composites work by creating and testing their own composite for an imaginary company.

$1 - $5 per student Ages 11 - 18 4 to 24 hours
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In this activity, learners will engineer their own weather vane. This activity includes step-by-step instructions with pictures and a "What's Happening?" section explaining how the activity worked.

$1 - $5 per student Ages 4 - 11 5 to 10 minutes
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In this activity (page 12), learners explore how molecules self-assemble and how molecules must fit together, like a lock and key, in order to identify each other and initiate a new function as a comb

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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This fun video explains how to make a batch of oobleck (or slime) and why this special substance is known as a "non-Newtonian" fluid. Watch as Mr.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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Are balloons porous or non-porous? In this activity, learners watch an entertaining Mr. O video and conduct a simple experiment to find out.

$1 - $5 per group Ages 8 - 11 10 to 30 minutes
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In this activity, learners will engineer three different parachutes to test how well each one works.

$1 - $5 per student Ages 6 - 14 30 to 45 minutes
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In this activity, learners demonstrate the effects of cold-working (strain-hardening) and annealing. Learners discover that these processes change the load that a wire can support.

$1 - $5 per group Ages 14 - adult 2 to 4 hours