Check this site! sandgrains.com
Dr. Gary Greenberg invites us to have a look at these amazing pictures...
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Many of you have wondered what the UV index is... Well, please click on the link, and then learn about the different levels of these rays an... -
Watch this one! Compulsory comment for November 15th!!!
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Did you know about this amazing mass of plastic floating in the ocean? Write 7 things you learnt as you watched this video, and send a comme...
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