Preschool+Plus STEAM: Ocean Slime! We have found the best recipe! Throughout our year, we have tested several recipes, however none as successful as today’s! Working in small groups, preschoolers added and mixed ingredients, including water, colored glue, and baking soda! We talked about how slime is not a liquid (it doesn’t pour) and not a solid (it changes shale), but a polymer! We learned that other stretchy polymers in our classroom were the bottom of our gym shoes!