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In this activity, learners explore a scale by comparing objects, which look similar but have different weights. Learners predict and then measure the weights of various objects using a scale.

Learners measure a bottle full of air, and then use a vacuum pump to remove the air. When they re-weigh the bottle, learners find the mass is about 0.8g less.

Learners build a simple one-cell battery and use an ammeter to measure the flow of current.

In this activity, learners investigate the process of osmosis by adding salt to a sealed bag of raw carrots and comparing it to a control.

In this activity, leaners explore building techniques by recreating the story of The Three Little Pigs.

In this experiment, learners design and build a model room in a shoebox and furnish it with tiny furniture.

In this experiment, learners will conduct chemical and physical tests to identify mystery substances.

Learners build models to learn about the special cells and structures that plants use to move water from their roots up through the stems and leaves.

Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules.

Learners build a filter from old soda bottles and dirt. They create polluted water, and pour it through their filter to clean it.