Mass is the quantity of matter in an object.
Mass is often called as weight.
Mass can be measured in both metric and customary units.
Kilogram, gram, and milligram are the metric units whereas ounces and pounds are the customary units.
Suppose a sandwich weighs 7 ounces then the same mass in grams is approximately 200 grams.
As 1 ounce is about 28 grams then 7 ounce=7 × 28 200 grams.
A. grams
B. millimeters
C. seconds
D. liters
Correct Answer: A
Step 1: Grams is used to measure not too small and not too large weights.
Step 2: Seconds is a unit of time, liters is a unit of volume and millimeters is a unit of length.
Step 3: So, the best metric unit to measure the weight of a pizza is grams.