A Grade 1–9 Curriculum Framework Composed of Archetypical Phenomena and Technological Artifacts

摘要: A boy (11 years old) and a girl sit at table in an after school program mixing liquids. They have just spent 10 min observing liquids special bottle arrangement. Two soda bottles are connected with tube containing two different (Drawing of device is from Salad Dressing Physics. Permission granted Kelvin the publisher curriculum.) When this arrangement turned over, each liquid moves to replace other. thin stream forms top as formerly bottom floats upwards, sinks bottom. The these common such cooking oil, water, mineral alcohol.