A fourth grade mass and volume worksheet where students fill in the bubble to choose the best unit of measure for weight and capacity. Includes an answer key — perfect for quick, no-prep measurement practice at home or school.
A measuring metric word problems worksheet where 4th graders solve five real-world grams, kilograms, milliliters and liters problems, including two that need a unit conversion first. Answer key included, so practice is quick and no-prep.
This Choosing Milliliter or Liter Worksheet has 4th graders pick the right metric unit for six everyday containers, convert liters and milliliters, and solve a word problem. Answer key included.
This cup pint quart gallon worksheet gives 4th graders practice choosing units and converting between cups, pints, quarts, and gallons. Includes an answer key—a no-prep way to build customary capacity skills.
This measurement conversion activity helps 4th-5th grade students change kilometers, kilograms, liters, hours and more into smaller units with cards, tables and a poster. Answer key included.
Run the How Much Will It Absorb Diaper STEAM Activity as a real lab for 4th to 6th grade: test diaper gel, convert capacity units, and design a diaper, with an answer key included.
How much can it hold?
Fourth graders learn that capacity is how much a container can hold, and they measure it in two systems. In customary units they work with cups, pints, quarts and gallons: 2 cups = 1 pint, 4 quarts = 1 gallon. In metric they use milliliters and liters: 1 L = 1,000 mL. They pick the best unit for a job, convert from bigger units to smaller ones, and solve word problems about juice, paint and fish tanks. The click comes when kids realize a gallon of milk is just 16 cups lined up in disguise.
Capacity is best learned wet! These moves get real containers in kids' hands before the numbers show up on paper.
Kids predict how much water a diaper will soak up, then pour and measure in milliliters to find out. Real pouring and real measuring make metric units something they can picture, and the surprise result gets everyone talking.
Why it works: the U.S. Department of Education's guide for teaching elementary math recommends moving from hands-on objects to drawings to numbers.
Try it withHow Much Will It Absorb Diaper STEAM ActivityActivitiesOpen it →Hold up everyday items like a spoon, a water bottle and a bathtub picture. Kids decide which unit fits before you show the answer. A quick sorting page afterward shows who can pick the right unit on their own.
Why it works: a big review of study methods ranked quick self-quizzing among the most powerful ways to remember (Dunlosky and colleagues, 2013).
Try it withChoosing Milliliter or Liter WorksheetWorksheetsOpen it →Set out a gallon jug and smaller containers. Groups figure out how many cups, pints and quarts fill it, then record the pattern. Mixing hands-on pouring with a written page locks in the conversions.
Why it works: shuffled practice teaches kids to choose the right strategy, not just repeat one, and it improved test scores in research (Rohrer and Taylor, 2007).
Try it withCup Pint Quart Gallon WorksheetWorksheetsOpen it →Capacity turns into a game fast when there's a challenge involved. Try these for centers or a math warm-up.
ActivitiesPartners race to convert gallons to quarts or liters to milliliters. First to the right answer earns a point.
Open Measurement Conversion Activity →
WorksheetsKids solve word problems about how much lemonade the stand needs. Ask them to write one tricky problem for a classmate.
Open Measuring Metric Word Problems Worksheet →
WorksheetsCompare mass and capacity with real objects. A full cup of feathers and a full cup of rocks hold the same amount but feel very different!
Open Mass and Volume Worksheet →Teacher favorites right now: Mass and Volume Worksheet, Measuring Metric Word Problems Worksheet and Choosing Milliliter or Liter Worksheet.
Capacity is the amount a container can hold. Fourth graders measure it in cups, pints, quarts and gallons, and in milliliters and liters.
Two cups make a pint, two pints make a quart, and four quarts make a gallon. That means a gallon holds 16 cups.
There are 1,000 milliliters in one liter. A large water bottle holds about one liter, and a medicine dropper holds about one milliliter.
Measure in the kitchen! Have your child fill a quart jar with cups of water and count them. Read the labels on milk and juice containers and talk about which unit is used.
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