Place two objects on a see-saw. Look at which side is down and which side is up. Then tell which object is heavier and which object is lighter
A. Determine which of two objects is heavier or lighter
C. Determine which of two balance scales holds objects that are about the same weight
D. Identify which picture of objects on a balance scale matches a description of their weight (Level 1)
E. Identify which picture of objects on a balance scale matches a description of their weight (Level 2)