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Learners play the role of materials engineers as they test the flexibility of different materials.

Through discussion and hands-on experimentation, learners examine the geological (ancient) carbon cycle.

Learners use a spring scale to drag an object such as a ceramic coffee cup along a table top or the floor.

Using simple, inexpensive items, learners build and test submarine models.

In this ocean engineering activity, learners explore buoyancy and water displacement. Then, learners design models of deep sea divers that are neutrally buoyant.

In this activity, learners mix milk, vinegar, baking soda, and water to create sticky glue. Use this activity to explain how engineers develop and evaluate new materials and products.

Learners investigate weight by building a spring scale. They observe and record how it responds to objects with different masses.

Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.

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

Learners develop an understanding of air pressure in two different activities.

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

In this activity, learners explore the concept of friction and how ball bearings reduce friction.