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Learners take on the role of environmental engineers as they design water filters.

In this design challenge, learners will use microbes to design and grow a custom biomaterial at home and make something creative with it.

In this activity, learners explore how packaging engineers develop customized shipping and packaging containers to meet the needs of many different industries.

In this design-based activity, learners explore environments, ecosystems, energy flow and organism interactions by creating a model biodome. Learners become engineers who create model ecosystems.

In this activity, learners are invited to imagine the park of their dreams!

In this activity, learners of all ages will design a functional bird feeder using familiar, every day materials.

In this archaeology meets art activity, learners make a mosaic and consider the ways in which art communicates.

Learners use engineering design principles to construct and test a fully solar-powered car. Solar car kits usually include a photovoltaic cell and motor; some include a chassis as well.

In this activity, learners use information gathered from a variety of sources to design and make their own insect.

In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air.

In this activity, learners consider the water features they might enjoy at a community park--a pond, brook, water playground (or "sprayground"), or pool--and what happens to the water over time.

In this activity, learners explore surgical instrument design. Teams of learners construct surgical instruments from everyday materials.

Using simple materials from around the house and recycled materials, learners will engineer a grabber device to pick up and put down objects that are at least 12 inches away.

In this design challenge activity, learners build a four-stringed instrument that can play a tune.

In this activity, learners learn about the adaptations that flowers have developed which support pollination. Learners also list their personal preferences (i.e.

This is a tape and glue activity in which learners make binoculars that they can decorate and then use to go bird watching.

In this outdoor activity, learners discover how the environment around a building affects the growth of plants.

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

In this activity, learners investigate balance and symmetry by designing a symmetrical butterfly, using a paper cutout.

In this activity, learners observe fly behavior and then build a flytrap.