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In this activity, learners will explore coding by arranging words and phrases to create an order of operations in this low tech version of computer programming.

In this design challenge activity, learners build a machine out of cardboard that runs smoothly and dependably. Learners must be precise to make sure their component works properly.

In this activity, learners explore chemiluminescence and fluorescence. Learners examine 3 different solutions in regular light, in the dark with added bleach solution, and under a black light.

Learners explore the Bernoulli effect by building an airfoil (airplane wing) and making it fly.

Learners design different shaped bandages for different purposes. First, they draw their designs on paper.

Learners design, build, and test models of "dragon boats" made from up to three milk cartons.

Make a model city happier with LEDs, circuits, motors, and batteries! Groups can think, discuss, design, and build what would make a community happy. Kids can work as part of a team or on their own.

In this activity, learners design a therapeutic agent to image and/or cure various diseases in the respiratory system.

In this Bob the Builder(TM)-themed activity, learners explore what it means to work together as a team.

Learners will build and experiment with their own windmills made from simple household materials.

By tossing, collecting, and sorting beanbags, learners understand how the IBEX spacecraft uses its sensors to detect and map the locations of particle types in the interstellar boundary.

In this activity about encryption, learners cut out a secret decoder badge from a handout and use it to encode messages to each other.

In this activity, learners build water-propelled engines from soft drink cans.

In this experiment, learners design and build a model room in a shoebox and furnish it with tiny furniture.