September 28


Third grade scientists investigated compasses in lab to kick off their social studies unit on explorers. After reviewing the compass rose, we experimented with the relationship between magnets and compasses. A compass is a lightweight magnet. The needle lines up with the earth’s magnetic field. Then we made our own compasses. We magnetized a nail and placed the nail in a Petri dish that was floating in a bowl of water. We watched the magnetized nail search for North.