Mass and Volume — Answer Key
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
A juice box holds about 250 liters of juice.
Corrected: A juice box holds about 250 milliliters of juice.
Small containers hold milliliters, not liters.
2. Fix the sentence:
A Grade 3 bathtub holds about 200 milliliters of water.
Corrected: A Grade 3 bathtub holds about 200 liters of water.
Bathtubs hold a large volume, measured in liters.
3. Fix the sentence:
A teaspoon of medicine is about 5 liters.
Corrected: A teaspoon of medicine is about 5 milliliters.
A teaspoon holds only a few milliliters.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. A typical water bottle holds about 1 liter for Grade 3 lunch.
Water bottles commonly hold about 1 liter.
2. A medicine spoon holds about 5 milliliters in Grade 3 science class.
A spoonful of liquid is only a few milliliters.
3. The unit milliliter is written with the symbol mL for Grade 3.
The standard symbol for milliliter is mL.
4. The unit liter is written with the capital symbol L in Grade 3.
The standard symbol for liter is L.
Part C: True or False?
Read each statement. Circle True or False.
1. In Grade 3, 1 liter equals 1000 milliliters.
True False
1 L is exactly 1000 mL by definition.
2. A Grade 3 bucket of water holds about 10 liters.
True False
Common buckets hold around 10 liters of water.
3. A Grade 3 eyedropper holds about 2 liters of liquid.
True False
Eyedroppers hold only milliliters, not liters.