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In this activity, learners discover the primary physical properties used to separate pure substances from mixtures.

In this lab exercise, learners explore diffusion, cell membranes and particle size using beets and three alcohols.

In this nutrition activity (page 16 of PDF), learners document their individual eating habits and learn whether their eating patterns meet their needs.

This is an activity (on page 2 of the PDF under Surface Area Activity) about surface area to volume ratio.

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