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Robertson, Bill – Science and Children, 2015
This task asks readers to figure out why when you stir a cup of hot liquid and tap on the side of the cup with a spoon, the pitch of sound starts low and ends up high. The solution to last month's tasks relating to the circumference of the Earth and how many stars are in the (visible) sky is also presented.
Descriptors: Science Activities, Science Instruction, Elementary School Science, Scientific Concepts