Free printable practice
Units Of Weight Practice Activities
Printable Class 3 maths worksheets for practising grams, kilograms, heavier-lighter comparisons, and sensible units for everyday weights.
Practice that builds confidence
Building the idea of weight
These Class 3 Units of Weight worksheets help children understand how weight is measured using common units such as gram and kilogram. Learners practise choosing the right unit, comparing weights, reading simple measurement statements, and building the vocabulary of heavier, lighter, equal, gram, kilogram, and weight.
The printable activities include varied question styles so children do more than memorise facts. They connect classroom maths to real objects such as fruits, school bags, packets, and people, helping them judge whether an answer is reasonable.
Weight can feel abstract until children connect it with objects they can hold. These worksheets begin from familiar comparisons: a pencil is lighter than a book, a watermelon is heavier than an apple, and two objects may have equal weight. This prepares Class 3 learners to use measurement language correctly before moving into units.

Gram and kilogram in real life
Children practise when to use grams and when to use kilograms. Grams suit lighter items such as spices, erasers, or small packets, while kilograms suit heavier items such as rice bags, school bags, or a child’s body weight. Activities may ask learners to circle the better unit, complete simple statements, or match objects with sensible measurements. The focus is on estimation and understanding, not only calculation.
Progression through the worksheets
The practice moves from identifying heavier and lighter objects to reading weight words, selecting units, and comparing given weights. Where conversion is included, children see the important relationship that 1 kilogram equals 1000 grams. This helps them understand why 500 g is half a kilogram and why 1500 g is more than 1 kg. Visual prompts, word problems, and object-based examples keep the maths connected to daily life.
Parent routine at home
Use a kitchen weighing scale if available. Ask your child to choose three items: one light, one medium, and one heavy. First, let them guess the unit: gram or kilogram. Then weigh the objects and say the measurement aloud together. Finally, ask one comparison question, such as “Which is heavier, the dal packet or the apple?” This short routine makes the worksheet language meaningful.

Classroom uses for teachers
Teachers can use these printables for measurement revision, independent practice, maths centres, or quick checks after a lesson on mass. They also work well with a balance scale demonstration: pupils can compare two classroom objects, record the result, and then complete a related worksheet question. Pair work encourages children to explain why a unit makes sense.

Common errors and a child-friendly strategy
Watch for children using kg for every object, confusing heavier with bigger, or thinking a larger number always means heavier without checking the unit. Teach the strategy: “Think of the object, choose the unit, then compare.” If it fits in your palm, grams may be sensible; if it is carried with effort, kilograms may be better. Why iBloom worksheets help: each page gives focused, age-appropriate practice with clear contexts, so children learn to reason about weight instead of guessing units randomly.
Free printable PDF download
Use this Class 3 units of weight worksheet page to preview the activity, print it, or download it as a PDF for quick practice. It works well for homework, homeschool lessons, tutoring, morning work, revision, and classroom centers.
Answers and answer key support
After the child completes the worksheet independently, parents and teachers can use the answer support or answer key information to check the work, review mistakes, and choose the next practice step.
Helpful answers
Frequently asked questions
What weight units should a Class 3 child know?
A Class 3 child is usually expected to recognise gram and kilogram, understand that grams are used for lighter objects and kilograms for heavier objects, and know that 1 kilogram equals 1000 grams.
How do these worksheets teach grams and kilograms?
They use familiar objects and varied questions such as choosing the correct unit, comparing weights, completing measurement statements, and deciding whether an answer is reasonable.
Can my child use these worksheets without a weighing scale?
Yes. A weighing scale is useful for hands-on practice, but the worksheets also build estimation and unit sense through pictures, words, and everyday examples.
What is a common mistake in units of weight?
Many children choose kilograms for very light items or compare only the number without looking at the unit. Encourage them to ask, “Is this object light or heavy, and what unit is used?”
Are these worksheets suitable for revision before a test?
Yes. They are useful for revising key Class 3 measurement ideas such as heavier and lighter, grams and kilograms, sensible units, and simple comparisons of weight.
Is this Class 3 units of weight worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this Class 3 units of weight worksheet as a PDF?
Yes. Use the worksheet download option to save a printable PDF, or print the worksheet directly from the page.
Does this Class 3 units of weight worksheet include answers or an answer key?
When the activity has fixed answers, iBloom includes answer support so parents and teachers can check the completed worksheet.