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

In this activity, learners follow clues to find five puzzle pieces, then assemble them. This activity works well with a whole group, individuals, or families.

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

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