Preschoolers are curious creatures. Science experiments, math problems, engineering ideas, and current technology fuel their curiosity for the world. Learning how to observe, experiment, build, manipulate, create, problem-solve, and question are amazing tools for the future! This simple scale offers up so much room for experimenting with how heavy or how light different materials way as well as comparing and contrasting them. Lots of discussion with great concepts such as more and less and even are part of this weighing activity. This was a great moment of STEM practice in the classroom that happens organically because of our preschoolers natural curiosity.