Mass Teaching Resources
Teach students how to measure mass or calculate the mass of an object and more with games, worksheets and more teacher-created resources for your classroom!
Aligned with Australian maths standards, each printable and digital teacher resource in this collection has undergone careful review by our maths teachers to ensure it's ready to be added to a mass lesson plan.
Is this your first year teaching kids how to find the mass of an obect? Or maybe you're just looking for fresh ways to engage your students on the topic? Read on for a primer from our teacher team, including a kid-friendly definition of mass in physics, the formula for calculating mass and more!
What Is Mass? A Kid-Friendly Definition
Do you need a mass definition to start your lesson? This physics can be difficult for kids to understand due to its intangible nature. While we can measure the length or width of an object with a ruler, finding mass means dealing with an invisible concept.
So how do you explain it? Here's a definition that our teacher team likes to use to describe mass for our own students:
Mass is a measurement of how much matter an object is made of.
Mass vs. Weight — What's the Difference?
The definition above builds off students' study of matter in science classes and what they've learned about 'heavy' and 'light' objects and the differences between them both.
But as we've already noted, mass can be confusing for kids, and one of the most common points of confusion comes down to weight. After all, if something is heavy, it has more mass than a light object, but it also has more weight.
So, are mass and weight the same thing? No! Let's break down the differences:
Mass |
Weight |
| A measurement of the amount of matter in an object | A measurement of the force exerted on an object due to gravity |
| Doesn't change even when the amount of gravitational force on the object changes | Changes depending on the amount of gravitational force on the object |
What Is Mass Measured In? A Look at Units of Mass
The most common units for mass are kilograms (abbreviated kg) and grams (abbreviated g).
This represents another difference between calculating the mass of an object and measuring its weight! Weight is typically measured in pounds, ounces and tonnes.
How to Find Mass — 4 Methods
We've covered what mass is and how it's measured. Now it's time to find the mass of different objects!
There are four common methods that can be used to calculate mass, and each one has its own applications. Read on for a breakdown of each one, including a formula that students can use to measure mass.
1. Measuring Mass With a Balance Scale
The simplest way to measure the mass of an object is to use a balance scale. Students can place the object on the scale and read the result.
Pretty simple, huh?
2. Using a Formula to Find Mass
What if the object is too large to place on a scale, or you don't have the object ... or a scale? Using a formula to find the mass of an object is another option in these situations!
There are two mass formulas that are typically used to calculate mass:
Density Formula
If you know the density (mass per unit volume) of a material and the volume of the object, you can use the following formula:
Mass=Density×VolumeMass=Density×Volume
Weight Formula
Although weight and mass are different, here on Earth these two measurements are in proportion to one another. Because of this, you can make use of the weight formula to solve for mass.
Weight=Mass×Acceleration due to GravityWeight=Mass×Acceleration due to Gravity.
Note: This formula only works when the object is in a gravitational field!
3. Measuring Mass With the Water Displacement Method
Do you have an irregularly shaped object? The simplest way to calculate its mass is to use the water displacement method.
- Submerge the object in water.
- Calculate the volume of water displaced. This is equal to the volume of the object.
- Calculate the mass using the density formula mentioned earlier.
4. Using a Spring Scale to Calculate Mass
The final method for finding the mass of an object is to use a spring scale. This is typically a method taught in secondary school.
The spring scale is used to measure the force exerted by an object due to gravity, with students employing Newton's second law to find the mass of a particular object.
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Mass Mystery Escape Room
Explore the different elements of mass with this super fun and engaging escape room resource.
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Comparing Mass With Balance Scales Worksheet
Practise comparing and contrasting the mass of objects as shown on balance scales with this set of mass measurement worksheets.
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Reading Scales – Measuring Mass Worksheet
A worksheet for students to use when learning to read scaled instruments to measure mass.
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Measurement Worksheets for Foundation - Mass, Length, Capacity
Practise comparing units of mass, capacity, and length with a printable pack of foundation measurement worksheets.
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Converting Units of Mass – Worksheet
Convert units of mass including those with decimal representation using this worksheet.
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Year 3 Using Units of Measurement Worksheets Bundle
Download year 3 worksheets for using units of measurement that are linked to the Australian Curriculum.
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Measuring Mass Digital Learning Activity
Practise measuring mass with this fun and engaging digital learning slide deck.
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Measuring Mass Task Cards
Explore estimation and measuring mass with this set of 24 word problem task cards.
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Measuring Mass with Informal Units Worksheet
A worksheet to use when exploring mass and how to measure it with informal units.
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How Much Does it Measure? Estimating Units Interactive (Mixed Units)
Estimate units of mass, volume, temperature, length, and more with an engaging, interactive measurement game.
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I Have, Who Has? Game – Measuring Mass with Scales
A game to reinforce the skill of reading scaled instruments when measuring mass.
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Measurement Conversion Scoot Game
Grab a handy set of 24 measurement conversion task cards to use as a whole class scoot activity.
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Mass Calculations Word Problem Worksheets
Put mass understanding into practise with this set of three word problem worksheets.
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All About Mass Teaching Slides
Learn all about mass using this engaging set of teaching slides.
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Reading Scales – Measuring Mass Match-Up Worksheet
A worksheet to give students practice at reading scales to measure mass.
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All About Mass Worksheet Pack
Practise the metric units used to measure the mass of objects with this set of worksheets.
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Mass Maths Investigation - How Much Do We Throw Away?
A mathematics investigation about measuring mass, embedded in a real-world context.
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How Much Does It Measure? Match-Up Activity (Length, Mass and Capacity)
Reinforce measurement concepts of length, mass and capacity with 18 printable matching cards.
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Know Your Measurement Conversions Trivia Game
Practise measurement conversions involving time, length, capacity, and volume with an exciting Know Your Measurement! Trivia Game!
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Heavy and Light Worksheet Pack
Practise knowledge of heavy and light with this set of cut-and-paste worksheets.
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Mass Investigation - How Heavy Are the Objects in Your Classroom?
Explore the mass of objects in the classroom with this mass mathematics investigation embedded in a real-world context.
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Mass Vs Weight Poster
Display this poster to help students remember the difference between weight and mass.
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Measuring Informal Mass Worksheet
Practise measuring items using informal units of measurement with this measuring mass worksheet.
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Informal Mass - Heavier or Lighter Interactive
Practise using informal units of measurement to compare and estimate the mass of everyday objects with this engaging digital activity.
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My Recipe Rules - Measurement Worksheet
A worksheet using money and measurement concepts.
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Informal Mass Scavenger Hunt Worksheets
Practise using balance scales to determine the weight of objects using informal units with these fun scavenger hunt worksheets.
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Colossal Cinemas: Which Popcorn Popper? – Project
A project that encourages students to use imperial and customary units to measure popcorn poppers and the popcorn they produce.
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Ordering Mass Cut and Paste Worksheets
Assist students in their knowledge of simple mass with these heaviest to lightest cut-and-paste worksheets.
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Informal Mass Choose and Use Cut and Sort
Learn the concept of informal units of measurement for mass with this choose and use worksheet.
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Measuring With Mass Interactive Task Cards
Explore how to measure mass with this fun and interactive set of digital task cards.
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Selecting Units of Mass – Sorting Activity
A sorting activity to help students identify objects that should be measured in grams, kilograms and tonnes.
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Which Is Heavier? – Interactive PowerPoint
An interactive PowerPoint quiz that asks students to compare the mass of various everyday objects.