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| Friction |
| An interactive track on which children can explore the effect of friction with different track surfaces. |
| http://www.bbc.co.uk/schools/scienceclips/ages/8_9/friction.shtml |
| From: Forces and Motion |
| Hits: 35 |
| Date: Mar 10, 2008 |
| Votes: 0 |
| Rating: 0.00 |
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| Comments: There are currently no comments available._
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