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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...
2 comments:
i dont like it because it is very slow de camara and allways it repeting the same
Wow! it is incredible what scientists figure out that we can´t see with the human eye. It is incredible that such a strong material like a metal can vibrate so much.
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