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Showing results 1541 to 1560 of 1908

Speedy Shelter
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In this design challenge activity, learners invent an emergency shelter that can fit a person and is sturdy and quick to build.

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.

Yeast DNA Extraction
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This laboratory exercise is designed to show learners how DNA can easily be extracted from yeast using simple materials.

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.

Let's Make Music
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In this activity, learners will create their own percussion instrument with recycled materials. Learners will explore design, fabrication, cause and effect and sound through this activity.

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

A Model Nuclear Power Plant Steam Turbine
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In this activity (on pages 20-23 of PDF), learners build a model of a power plant using simple materials.

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

Carrying Charges: Testing for Conductivity
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Learners are challenged to create solutions that conduct electricity and make a buzzer buzz (or an LED light up).

Inertia Coin Stack Challenge
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In this activity, learners experiment with inertia by performing an easy and hands-on investigation with a playing card and a stack of coins. The activity includes an accompanying Mr.

Polar Opposites
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In this activity, learners make a 3-D model of magnetic fields by inserting a small, strong magnet into a sphere.

Slide Whistle
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In this activity, learners build a slide whistle using PVC pipe, bamboo skewer, and piece of foam. Construction of the instrument is relatively simple.

Pop Can "Hero Engine"
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In this activity, learners build water-propelled engines from soft drink cans.

Exploring Fabrication: Self-Assembly
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In this activity, learners participate in several full-body interactive games to model the process of self-assembly in nature and nanotechnology.

Roller Coasters
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In this design challenge, learners will create their own roller coaster using household objects for the track and a marble or small ball as their cart.

Bernoulli Brain Teasers
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In this activity related to flight, learners conduct two simple tests to explore how lift works.

Exploring Size: Ball Sorter
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In this activity, learners use sieves with different-sized holes to sort balls by size.

Electroscope
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In this activity about electricity, learners suspend pieces of tape from a straw to construct an electroscope, a device that detects an electrical charge.

Great Steamboat Race
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In this outdoor activity, learners race small boats, made of cork, balsa wood, popsicle sticks etc., to investigate the rate and direction of currents in a stream or creek.

Safe in the Sun
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In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.