Classify objects weight from low to high. Observe which objects sink or float. Graph the results on individual student activity sheets. Work cooperatively within a small group. Handle scientific equipment properly.
Density determines if a substance sinks or floats in another substance.
Collect materials needed ahead of time. Record weight in grams on small pictures of objects. Have students place pictures in order according to weight from low to high. Paste on activity sheet 1. Have students predict which objects will float and which will sink.