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In this activity, learners discover that some things only stand up while they are spinning.

Groups of learners are provided with a generic car base and an egg. Their mission: design a device/enclosure to protect the egg on or in the car as it rolls down a ramp with increasing slopes.

In this activity, learners work in groups to determine the mass and volume of four samples: glass marbles, steel washers or nuts, pieces of pine wood, and pieces of PVC pipe.

In this team design challenge (page 19-24 of PDF), learners "land" a model Lunar Rover in a model Landing Pod (both previously built in activities #3 and #4 in PDF).

In this math lesson, learners analyze the density of liquids in order to explore linear functions.

In this activity, learners use cardboard bases and track tubes to make a ball run to explore the properties of mass, force, and motion.

In this activity, learners explore density and buoyancy as they design and construct rafts.

In this hands-on activity, learners will construct a scuba diver that can float in order to explore how sea creatures stay neutrally buoyant in the ocean and to see what kinds of forces might be influ

In this activity, learners collect, categorize, weigh and analyze classroom trash and discuss ways that engineers have helped to reduce solid waste.

In this activity, learners work in teams to investigate the relationship between mass, acceleration, and force as described in Newton's second law of motion.

In this activity (page 1 of the PDF under SciGirls Activity: Bogs), learners will test cups full of potting soil, sand, and sphagnum moss to see which earth material is able to soak up the most water.

In this design challenge activity, learners build a rubber band-powered rover that can scramble across the room.

In this activity, learners will test cups full of potting soil, sand, and sphagnum moss to see which earth material is able to soak up the most water.

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

Learners will understand the relationship between climate change and sea-level rise.

In this activity, learners will build thier own balance scale. Learners will explore weight and comparison through this activity.

Learners act as engineers and design mini submarines that move in the water like real submarines.

In this activity, learners explore how spring scales work and how they are used for non-exact weight measurement.

In this activity, learners design, build, test and redesign a display tower that will meet a specific set of criteria and constraints.

In this team design challenge (page 2-10 of PDF), learners design and build a model of a Lunar Transport Rover that will carry equipment and people on the surface of the Moon.