![]() When evaluating solutions it is important to take into account a range of constraints including cost, safety, reliability and aesthetics and to consider social, cultural and environmental impacts. This activity focuses on the following Three Dimensional Learning aspects of NGSS:Įvaluate a solution to a complex real-world problem, based on scientific knowledge, student-generated sources of evidence, prioritized criteria, and tradeoff considerations.Īlignment agreement: Thanks for your feedback! Design a "capillary siphon" that filters water by using capillary action to transfer water from a "cloudy" to a "clean" bucket.Įvaluate a solution to a complex real-world problem based on prioritized criteria and trade-offs that account for a range of constraints, including cost, safety, reliability, and aesthetics, as well as possible social, cultural, and environmental impacts.Ĭlick to view other curriculum aligned to this Performance Expectation.Describe how the combination of adhesive and cohesive forces causes water to rise in a thin tube or other confined space (capillary action).Explain what a meniscus is and how it is formed.The behavior of capillary action is exploited in blood sugar test strips to help diabetics monitor their conditions.Īfter this activity, students should be able to: Petroleum engineers use their understanding of capillary action in the extraction of crude oil from rock reservoirs. This engineering curriculum aligns to Next Generation Science Standards ( NGSS).Ĭapillary action in, part, determines the behavior of ground water in soil, which makes understanding the concept important to both civil and environmental engineers in their work to ensure the stability of buildings and roads as well as understand the environmental impact of human development. Finally, students experience a real-world application of capillary action by designing and using "capillary siphons" to filter water. Then they study capillary tubes and observe water climbing due to capillary action in the glass tubes. First they observe the shape of a glass-water meniscus and explain its shape in terms of the adhesive attraction of the water to the glass. Students observe multiple examples of capillary action.
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