Scientists Come in all Shapes and Sizes

How do you separate a mixture of dry materials?

Fourth grade scientists have been working for weeks on mixing and separating mixtures, both wet and dry. Before we left for winter break, these special students accepted a mystery challenge. Separate a mixture into four materials: salt, diatomaceous earth, gravel, and a mystery substance using a filter, screen, water, and a magnet. The scientists broke into small groups and got straight to work. Each team was responsible for designing, executing, and editing their experiments using design thinking and engineer practices.

Would you believe that each team was able to complete the task independently?

What will we separate next? How can we apply this new knowledge to the world around us? We are about to find out!