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In this engineering design challenge, learners build an octopus-inspired suction pad that can grab an object and hold it tightly in the air.

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

Learners create beautiful fluid motion. They explore fluid dynamics, surface tension, solubility, and buoyancy while mixing liquids together.

In this activity (pages 42-49), learners discover the methods and challenges of building nanoscale structures with macroscale equipment.

In this engineering design challenge, learners make a bubble maze that allows bubbles to move through a series of “on” and “off” switches.

In this activity, learners construct a rocket powered by the pressure generated from an effervescing antacid tablet reacting with water, and build a launch pad for their rocket.

The goal of this activity is to design the fastest sailboat or one that carries the most treasure.

In this activity, learners are introduced to challenges of maintaining temperatures while living in space.