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In this activity, learners touch supercooled water drops with an ice crystal and trigger the water drops to freeze instantly.

In this activity about the relationship between food and energy (page 1 of PDF), learners observe and quantify the growth of yeast when it is given table sugar as a food source.

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

In this chemistry activity (page 1 of the PDF), learners will observe a physical change.

In this activity about combustion and energy, learners observe a burning candle in a sealed jar and the burning of white sugar.