MathematicsFreePrintable

Mass Detective Conversions

A free mathematics worksheet ready for your classroom. Open in Kuraplan to grab the print-ready PDF, customize it for your students, or generate a fresh version in seconds.

Mass Detective Conversions worksheet preview

Mass Detective Conversions

Detective with magnifying glass examining a scale

🔍 Part 1: Detective Conversions

Remember: 1 kilogram = 1000 grams

1. A cat weighs 3.2 kilograms. How many grams is this?
2. A packet of sugar weighs 1200 grams. How many kilograms is this?
3. A textbook weighs 850 grams. How many kilograms is this?
4. A small dog weighs 4.5 kilograms. How many grams is this?

⚖️ Part 2: Detective Challenge

5. Which is heavier? Circle your answer and explain your reasoning.

A) 2400 grams      B) 2.4 kilograms

2400 grams

2.4 kilograms

They are the same

Explain your reasoning:

6. A recipe calls for 1.5 kilograms of flour. The store only sells flour in 500-gram bags. How many bags do you need?
7. Complete the conversions:

a) 2500 grams = _______ kilograms

b) 0.75 kilograms = _______ grams

c) 3250 grams = _______ kilograms

d) 5.2 kilograms = _______ grams

🎯 Part 3: Real-World Detective Work

8. Look around your classroom. Name three objects and estimate their mass. Then choose the best unit (grams or kilograms) for each.

Object 1: _________________ Estimated mass: _______

grams
kilograms

Object 2: _________________ Estimated mass: _______

grams
kilograms

Object 3: _________________ Estimated mass: _______

grams
kilograms

9. Detective Challenge: A grocery store receipt shows these items. Convert each mass to the other unit:

• Apples: 1.2 kg = _______ g

• Cheese: 250 g = _______ kg

• Potatoes: 2800 g = _______ kg

• Milk: 1 kg = _______ g

About This Worksheet

Free in Kuraplan

Sign up free, grab the PDF, and customize it for your class.

Print-Ready

Formatted for standard paper. Clean layout, easy to read.

AI-Generated

Created with Kuraplan's AI, designed for real classroom use.

For Teachers & Parents

Use in classrooms, for homework, tutoring, or homeschool.

Need a custom version of this worksheet?

Kuraplan's AI generates custom worksheets in seconds — differentiated for every learner, aligned to your curriculum.

Generate Custom Worksheets — Free
No credit card Curriculum-aligned Under 60 seconds