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In this laboratory activity, learners design an experiment to evaluate how environmental factors influence the growth of molds.

In this lab (Activity #1 on page), learners explore how we see color.

Learners experiment with water gel crystals, or sodium polyacrylate crystals, which absorb hundreds of times their weight in water. When in pure water, the water gel crystals cannot be seen.

In this activity, learners use gelatin as a lens to investigate the properties of laser light.

In this outdoor, winter activity, learners find living green plants under the snow and determine the light and temperature conditions around the plants.