Mixtures

On Friday, October 3rd, our class did some explorations in the lab regarding mixtures. We had been studying the differences between heterogeneous and homogeneous mixtures and the different techniques used to separate them!

We made some pretty neat mixtures, like salt water, Kool-aid, and oil and water. Then, we learned why you should not just randomly try to mix things together by mixing baking soda, vinegar, and food coloring!

After making some mixtures, we demonstrated some of the different ways in which mixtures can be separated. We used filter paper and evaporation, but the students' favorite was easily separation by magnetism! Everyone wanted to touch the iron that we extracted from some "crime scene dirt".