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In this activity, learners make or use pre-made clay beams to scale and proportion. Specifically, they discover that when you scale up proportionally (i.e.

In this activity, learners get hands-on experience with ratios and scaling while making their own jewelry out of recycled plastic containers.

Learners build a simple electromagnet, then use this electromagnet to transform a yogurt container into a working speaker. They can connect their speaker to a radio and listen as it transmits sound.

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

Water treatment on a large scale enables the supply of clean drinking water to communities.