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Curated OER
Factors Affecting Weathering
In this weathering worksheet, students use Alka-Seltzer tablets to simulate the effects of particle size on weathering and they study the effects of temperature on weathering. They answer questions to conclude the activity.
Center for Learning in Action
Investigating Physical and Chemical Changes
Super scientists visit ten stations to predict, observe, and draw conclusions about the physical and chemical changes that occur when different states of matter—liquid, solid, and gas—are placed under a variety of conditions. To...