USGS - science for a changing world

The USGS Water Science School

Water-Science Activity Center - Challenge Questions

Challenge QuestionsThis is the Challenge Questions section of the Activity Center. Here we'll challenge you to see if you know the answers to intriguing questions about water, such as "Are raindrops tear shaped?", and "How much water does it take to grow a hamburger?"

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URL: http://water.usgs.gov/edu/activity-challenges.html
Page Contact Information: Howard Perlman
Page Last Modified: Monday, 17-Mar-2014 11:03:08 EDT