Rounding Off 3. Students make a straw hydrometer using BB's and clay. Measuring accurately 1. Comparing known with unknown quantities. 14 Finding the Density of Solids 1.
Students find the density solid objects.
Using a balance, graduated cylinder, and ruler. The Three Laws of Motion 1. Students make flip card cartoons of Newton's three laws. Drawing 16 Gravity 1. Teacher Demonstrations of Gravity 2.