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Crank It Up
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In this engineering activity, learners explore simple machines and then build cardboard automata using cams.

Cup Draw (Low Tech)
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In this activity, learners construct drawing machines using a cup, some markers, and a battery pack. The markers act as "legs" for the machine, making a drawing that records as it moves.

Make a Mobile!
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In this activity, learners make mobiles to explore the concepts of balance, counterbalance, weight, and counterweight.

Cardboard Automata
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Cardboard Automata are a playful way to explore simple machine elements while creating a mechanical sculpture.

Sound Automata
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In this activity, learners build their own sound machines and explore the interplay of motion and sound.

Scribbling Machines
Source Institutions
In this activity, learners explore electronics and motion by making a Scribbling Machine, a motorized contraption that moves in unusual ways and leaves a mark to trace its path.

Rotational Equilibrium
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In this activity, learners explore the concept of rotational equilibrium. Learners work in teams to estimate and determine the force within a mobile design.

Burst a Bubble
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In this activity, learners will create their own bubble solution. Learners will explore chemistry, geometry and trial and error through this activity.

Marshmallow Catapult
Source Institutions
In this activity, learners explore physics by building a catapult that launches marshmallows with household objects.

Crystal Packin' Mama
Source Institutions
In this activity, learners investigate the basic crystal structures that metal atoms form.

Jitterbugs
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In this activity, learners construct bug models that "jitter" all over the table with just a battery, motor, and counterweight.

What is Nanotechnology?
Source Institutions
In this activity related to nanotechnology, learners observe some of the effects that result from creating a thin layer of material several nanometers thick.

Cupcake Delivery
Source Institutions
In this design challenge, learners will create wind-powered contraptions to transport a load, such as a cupcake or another small object, and test to see if they work.

Carousel Pump
Source Institutions
In this activity, learners build a carousel toy that spins when pushed down.

Wandering Wands
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In this activity, learners construct wands that play different notes depending on information from light sensors programmed via a PICO Cricket.

Finger Basketball
Source Institutions
In this activity, learners build mini-basketball courts using cardboard and measuring spoons. Use this activity to introduce learners to catapults, forces, and levers.

Minibot
Source Institutions
In this activity, learners build a mini dancing robot. This engineering activity introduces learners to electricity, circuits, switches, conductivity, and motors.

Glitter Slime
Source Institutions
In this activity on page 8 of the PDF, learners make a slimy substance very similar to mucus, and sprinkle it with glitter to imitate the way that allergens are trapped.

Motor Bird
Source Institutions
In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.

Cooking With the Sun
Source Institutions
In this activity, learners build a simple solar oven out of household materials to melt chocolate and marshmallow between graham crackers--known as s'mores.