![Investigate Box Science Kit With squirmy worms in Investigate Box 1, expanding snow in Box 2 and slippery slime in Box 3, there are loads of way to play with polymers with Letterbox Lab](https://www.letterboxlab.com/wp-content/uploads/2017/10/1_Investigate_Box-300x300.jpg)
![letterbox lab banner image 1 a girl making a liquid rainbow with letterbox lab science equipment](https://www.letterboxlab.com/wp-content/uploads/2017/04/4girls3-1-300x300.jpg)
![2_Investigate_Box](https://www.letterboxlab.com/wp-content/uploads/2018/01/2_Investigate_Box-300x300.jpg)
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