In this Experiment i will be demonstrating Center of gravity by balancing 10 nails on top of one nail head. „Harmony Public Schools: Where Excellence is Our …
Title: Balancing Nails- Harmony PBL 2013-2014
Duration: 2:30
Submited by: lady-admin
Category: Models
Added on: Februar 1st, 2014
Views: 813 views
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