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Learners investigate stress and strain by designing, building, and testing beams made from polymer clay.

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

In this activity, learners are challenged to design a wind-powered car using only a handful of household materials.

Learners construct and use a "real" 3D coordinate system out of balsa wood and foam core. They will then be able to locate coordinates in space.

In this activity, learners will test the strength of different brands of paper towels.

In this activity (located on pages 23-24 of the PDF), learners are introduced to structural engineering and encouraged to practice goal-oriented building.

In this sports-themed engineering activity, learners create super bouncy balls out of balloons. Learners brainstorm, test their designs, and share results.

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 game (on pages 14-21), learners explore how each human being inherits genetic traits such as eye color.

In this activity, learners are challenged to create a parachute using easily sourced materials in order to transport a LEGO figure safely to the ground.

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 will engineer three different parachutes to test how well each one works.

Learners build structures from spaghetti and marshmallows to determine which structures are able to handle the greatest load.

Learners build and investigate pendulums of different lengths. They discover that the longer the string of the pendulum, the longer the time it takes to swing.

Learners engage in close observation of falling objects. They determine it is the amount of air resistance, not the weight of an object, which determines how quickly an object falls.

In this engineering activity, learners investigate the differences between the strength of bridges made from flat and round building materials.

Based of the The Tech Challenge 2015, learners will engage in two mini-design challenges related to seismic engineering.

In this activity, learners build small animated toys that move.

In this design challenge, learners build a boat that paddles itself using a rubber band as its power source.

In this design challenge, learners will create their own roller coaster using household objects for the track and a marble or small ball as their cart.