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| Title: | 40. Take it from the Top |
| Author: | Stephanie Chasteen |
| Description: | A stack of blocks seems to defy gravity in this activity by Exploratorium staff educator Don Rathjen. Take It from the Top activity: http://www.exploratorium.edu/snacks/take_it_from_the_top/index.html More of Don Rathjen’s activities: www.exo.net/~donr |