This unit introduces the concept that students can use scientific tools and processes to learn about things just like a scientist! Students engage in the science and engineering practices in order to find out more information about the natural and designed world.

Throughout the unit, students use rocks as the objects of study. They collect observations about them using hand lenses. Students use the scientific process to measure, weigh, sort and compare their rocks. They learn how to record the data they collect on the rocks and communicate this information with their peers. They design an investigation using the science practices to determine if their rock will sink or float.

Finally, students consider how science can be used to solve problems by applying what they have learned to the problem of too much trash. Students create posters to communicate to their school the importance of recycling and use the engineering design process to come up with a tool that can remove trash from the water.