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In this activity, learners explore how engineers use scales and measures when designing a manufacturing process to ensure that final products are uniform in weight or count.

In this activity, learners use simple items to construct a device for indicating air pressure changes.

Get all wrapped up in a lesson about skin!

In this activity, learners use rice grains to model the composition of the atmosphere of the Earth today and in 1880. Learners assemble the model while measuring percentages.

In this activity, learners make different shapes that hold exactly one mole of gas (air).

In this activity, learners create a model using metric measuring tapes and atmosphere composition data.

In this activity, learners explore the devices used over time to measure changes in temperature.

In this activity, learners make their own Sun tracker to explore how ancient civilizations around the world studied the Sun.

In this activity, learners use simple items to construct a device for indicating air pressure changes.

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