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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
Robertson, Bill – Science and Children, 2014
A convenient place to begin discussing overall wind patterns on Earth is to explain coastal winds. If you live near the coast (that would be near an ocean) or even near a large lake, you probably know the general pattern of winds there. During the day, breezes tend to blow from the water in toward the land, and at night, this tends to reverse,…
Descriptors: Science Instruction, Weather, Earth Science, Teaching Methods