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Description
The listing, Marble Timer Book Set has ended.
Explore motion and time with our Marble Timer crate and curated book, Just a Second.
1. Marble Timer Construct a marble-powered mechanism that helps keep time!
2. Just a Second This non-fiction picture book explores time and how we think about it in a different way - as a series of events in the natural world (some of them directly observable, others not) that take place in a given unit of time. Steve Jenkins' extraordinary illustrations will accompany this engaging look at time.