Using the Best Unit
The following questions ask you to click on the unit of measurement that you would most likely use to measure the given object.

• toothpick
  milligrams, grams, or kilograms.

• pumpkin
  ounces, pounds, or stones.

• bicycle
  milligrams, grams, or kilograms.

• eyeglasses
  milligrams, grams, or kilograms.

• truck
  pounds, tons, or stones.

• toothbrush
  milligrams, grams, or kilograms.

• rabbit
  milligrams, grams, or kilograms.

Converting Units
Use the table of conversions to answer the following questions.

• How many milligrams are in one kilogram?
  1,000, 100,000, or 1,000,000.

• How many grams are there in 3 kilograms?
  300, 30,000, or 3,000.

• How many ounces are in 2 pounds?
  8, 16, or 32.

• Which of the following amounts is equal to the highest number of grams?
  2 kilograms, 3,000 milligrams, or 1,000 grams.