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Science => Physics/Chemistry => Topic started by: Unbeliever on February 12, 2018, 03:19:10 pm

Title: Fun science toys
Post by: Unbeliever on February 12, 2018, 03:19:10 pm
https://www.youtube.com/watch?v=ZvislxtabcI



https://www.youtube.com/watch?v=E0_tsHj-JlQ



https://www.youtube.com/watch?v=rNQCFBEHxms