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Sound Representation: Modems Unplugged
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In this activity, learners listen to songs and decode hidden messages based on the same principle as a modem. As a final challenge, learners decode the binary messages in a music video.

Circuits with Friends
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In this activity, learners explore the parts of a circuit by modeling, as a group, a “human” circuit.

So Many Parts
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In this online Flash game and spacewalk mission simulation, learners are challenged to repair parts of a space station while balancing their oxygen and fuel use carefully.

Build a Soundscape
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This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises.

Sound Mixer: A Multi-track Mixer of Animal Sounds
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This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises.

Audio Memory
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In this interactive game, learners will test their memory of animal and insect sounds. Flip over cards, listen to the sound, and try to find the ones that match.

Build a Bubble Circuit
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In this engineering design challenge, learners make a bubble maze that allows bubbles to move through a series of “on” and “off” switches.

Sound Bingo
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This game is like regular bingo, except the clues are sounds.

Inkjet Printer
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In this activity, learners investigate how inkjet printers produce tiny, precise drops of ink.

Musical Sculpting Machine: Squeeze Play-Doh to Make Music
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Play-Doh is conductive! Use the semiconductive qualities of Play-Doh to make your own squeezable instrument. Pico Cricket is required.

Exploring Materials: Liquid Crystals
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In this activity, learners discover that the way a material behaves on the macroscale is affected by its structure on the nanoscale.

From the Internet to Outer Space
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In this activity, learners will use Google Sky to observe features of the night sky and share their observations.