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In this activity, learners use simple items to construct a device for indicating air pressure changes.

This is an activity (located on page 3 of the PDF under Nanosilver Activity) about diffusion of small molecules across cell membranes.

In this activity about molecular diffusion (located on page 2 of the PDF under Nanosilver Activity), learners will make predictions and move molecules of iodine through a seemingly solid plastic sandw

In this activity, learners explore how engineers design tire treads to increase safety and reliability.

In this activity, learners use simple items to construct a device for indicating air pressure changes.

This activity demonstrates the importance of wearing a helmet to protect the brain. An egg is used to symbolize a head with the shell as the skull and the inside of the egg as the brain.

MarsBound! is an engineering simulation activity in which learners use realistic techniques to plan a mission to Mars.

In this activity, learners explore the engineering behind life vests or personal flotation devices and the challenges met by these devices.