Let's begin with Joseph and Snehansh. They were both spending some time reading in the classroom when they stumbled upon a book about water. It just happened to have a water cleaning/filtering experiment in it! They made the connection to our unit and were very excited to show me what they had found! We looked at the book as a class and learned that water can also be filtered using a combination of stones and sand. It took only a second before everyone was shouting that we had sand and stones in the sand pit! So off we went digging! Our results were not as good as the coffee filter that Sam brought in. So then we thought maybe if we put more layers it will work! We created a filter layered first with cotton, a piece of cloth, sand and then the stones. We found that this actually worked better! Great job to Joseph and Snehansh as well as the whole class for taking one experiment from a book and taking it going even further by adapting it!
Clara went home to see if she could find something else that might filter the water and clean the dirt out. She came to school with two small strainers. We noticed that one had bigger holes than the other. We saw that they were able to catch the bigger pieces of dirt but when we inspected the water up close, the smaller pieces were still floating in the water. Well done Clara for taking action and trying to find new ways to find out answers to our questions!