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Magnetic Spinner & Compass
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Learners use shop tools and various materials to construct a magnetic spinner and a compass.

Draft Detectives
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In this two part activity, learners become draft detectives by constructing their own draft catchers to detect drafts around windows or doors.

Dough Creatures
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In this technology activity, learners light up the room with electrifying play dough creations. Learners use conductive and insulating homemade play dough to build simple circuits.

Trebuchet Toss
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In this activity, learners explore trebuchet design. Teams of learners construct trebuchets from everyday materials.

Cast Your Vote
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In this activity, learners explore how voting systems have changed with engineering advances over time. Learners work in teams to design their own voting system using easy to find materials.

Three Little Pigs
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In this activity, leaners explore building techniques by recreating the story of The Three Little Pigs.

Trophy Triathlon
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In this activity, learners are challenged to design and construct a trophy for prize-winning sports equipment.

Wind Tunnel
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Scientists use enormous wind tunnels to test the design of planes, helicopters, even the Space Shuttle.

Headphone Helper
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In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.
Building Houses: Build a Cardboard Tube House
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Build a house you can fit inside, using cardboard tubes.

Floating and Falling Flows
Learners create beautiful fluid motion. They explore fluid dynamics, surface tension, solubility, and buoyancy while mixing liquids together.

Skewers and Garden Poles
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In this activity, learners build scaled-down structures and cantilevers in a series of "building out" challenges with bamboo skewers and tape.

Tops
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In this activity, learners discover that some things only stand up while they are spinning.

Engineered Music
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In this activity, learners explore how musical instruments are engineered.

Positive Planning Adds Up
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In this drawing/mapping activity, learners design plots of land while incorporating positive strategies for improving water quality.

Density Rainbow and the Great Viscosity Race
Learners conduct two activities to investigate two properties of liquids: density and viscosity. In a clear container, learners stack 7 different liquids which will layer according to their density.

Design a Flavor: Experiment to Make Your Own Ice Cream Flavor!
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In this delicious activity, learners get to make, taste-test and compare their own "brands" of homemade strawberry ice cream.

Potion Commotion
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In this hands-on science experiment, students combine their understanding of the different states of matter and the characteristics of various chemical reactions.

Building with Wonderful Junk
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In this activity (page 4), learners work in groups to plan and build large structures using recyclable materials they have brought from home.
Ride on a Slide: Toys or Tubes Ride Slopes and Angles
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This activity is a hit for family events and all ages—some will finish in 45 minutes; others can go on for hours.