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This lesson focuses on how materials behave differently as their surface area increases.

In this activity on page 3 of the PDF, learners visualize the relative size and structural differences between microbes that have the potential to cause disease.

This lesson focuses on how nanotechnology has impacted our society and how engineers have learned to explore the world at the nanoscale.

In this activity on page 1 of the PDF, learners compare the relative sizes of biological objects (like DNA and bacteria) that can't be seen by the naked eye.

This lesson focuses on surface area and how the shape of sugar crystals may differ as they are grown from sugars of different coarseness.