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The Three Basic States (Phases) of Matter
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This activity was designed for blind learners, but all types of learners can explore the three states of matter by examining tactile models that illustrate the characteristics of particles in each sta
Filtering
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Make a quick and easy filter from household materials. A filter will catch any solids suspended in a liquid and filter them out. By using a filter, learners can discover amazing things.
Water Treatment
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Water treatment on a large scale enables the supply of clean drinking water to communities.