Contributed by: Assessment of Performance Unit
1989 Administration
Task: At this station, you will estimate (make your own
best guess at) the answer without using measuring instruments.
Materials:
 Plastic box with colored water labeled "C"
 Green paper leaf labeled "L"
 Wire circle
 Rubber ball labeled "B"
 Tube with water labeled "T"
 Container labeled "C"
 Wooden rod
 Package labeled "P"
Questions:
 How much colored water (cm^{3}) is there in plastic
box C?
 What is the area (cm^{2}) of the green paper leaf L?
 How long (cm) is the wire that makes the circle?
 What is the mass (g) of ball B?
 How much water (cm^{3}) is there in tube T?
 What is the area (cm^{2}) of the bottom of container
C?
 How long (cm) is the wooden rod?
 What force (N) do you use when you lift up parcel P by the loop
of the string?
 What is the area (cm^{2}) of the top of tube T?
 What is the mass (g) of the circle of wire?
