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Learners examine collisions between two skateboards carrying different masses. They learn about conservation of momentum in collisions.

In a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport.

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.

Learners conduct two activities to investigate two properties of liquids: density and viscosity. In a clear container, learners stack 7 different liquids which will layer according to their density.

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

In this activity, learners use Jell-O to explore lenses. Learners cut Jell-O into convex and concave lens shapes and examine how light exits each lens in a darkened room.

In this activity, learners design and build a NASA rover using raw pasta and candy with a limited imaginary budget.

In this activity, learners examine baking powder, a combination of three powders: baking soda, cream of tartar, and cornstarch.

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

In this design challenge, learners will create wind-powered contraptions to transport a load, such as a cupcake or another small object, and test to see if they work.

In this activity, learners use the design thinking process to design and build their own aqueduct, or water bridge.

In this activity, challenge learners to design a roller coaster ride for a marble using cardboard and other simple materials.

What's a more compelling problem to solve than being stranded on a deserted island?

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

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

In this project, students explore how levers work, by making a puppet with moving limbs.

In this activity, learners cut out and fold their own collapsible origami starshade, an invention that shields a telescope's camera lens from the light of a distant star so that NASA scientists can ex

In this activity, learners use design thinking to design and build their own bridge out of household materials including adhesives and/or connectors.