Yesterday we worked really hard on a number of small investigations about rocks and earth materials. In our lesson, we investigated what would happen When rocks are rubbed together? The great thing was that ALL the students predicted the correct outcome! Yay for us! We all expected tiny bits of rock to fall from the rocks and collect on the table. Some students even predicted that the tiny bits of rock over time would collect as sand. Then, we took our rocks outside because we knew that some rocks make great sidewalk chalk! So, we checked to see if our rock would transfer onto the pavement. It was SO fun. Here are some snapshots of our work. Enjoy!