This week we continued our unit about how water shapes the earth’s surface. Our second lesson was called, “Why is there sand at the beach?” We learned how rivers can be powerful enough to carry rocks and slam them into each other, breaking them into smaller and smaller pieces along the way.
Here’s something you can do to encourage your child’s curiosity: If you ever visit an ocean beach, look for a nearby river that empties into the sea. This is likely the source of the sand. Pick up some of the sand and look at it up close. Can you see the tiny rocks? What color are they? Ask your child to imagine and describe what color the rocks were before they got worn down to being so tiny.
Check out http://sandgrains.com/sand-grains-gallery.html for some amazing magnified sand shots!
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