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Items 41-48 of 139
- Build a ballistic catapult, a gravity fan, a balloon powered plane & more
- 144 piece durable construction kit with emphasis on physics principles
- Endorsed by Haynes Automotive
- Includes 100+ parts with complete instructions
- Features real ignitions sound and illuminating spark plugs
- All suppies included!
- Includes real volcanic specimens - pumice, obsidian and a geode
- Great for science fairs or 'rainy day' activities
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