Polymer was what we explored this week in the preschool room. The preschool room were able to use pencils, sandwich bags and water to explore how polymer wraps itself around any chinks in its armour (hole in the bag)
The next question we asked was how many chinks in the armour the bag could have before it popped and the water came out.

Questions we were left with;
Why did the water stay in there?
Is there a hole in the bag?
What else holds water?