Mass is a measure of how much matter something contains. It is measured by how much something weighs. Mass can be measured in kg and g.

A gram is a metric measure of mass. A paper clip has a mass of about 1 gram.  The abbreviation is g.

Kilograms are use to measure the mass objects that are heavy. A pineapple has a mass of about 1 kilogram.  The abbreviation is kg.

Measure mass in whole kilograms and grams

Maths

In this unit pupils will become familiar with different weighing scales up to 1kg and with the tools to measure volume and capacity up to 1 litre. They will measure mass from zero above 1kg using whole kg and grams and measure volume from zero above 1 litre using whole litres and ml. In the future unit pupils will use knowledge of 1000 to explain common measure conversions and solve problems.

In the prior unit pupils used and compared standard units to estimate and measure length/height, mass, temperature, capacity to the nearest unit. In this unit pupils will use weighing scales up to 1kg and measuring tools for volume and capacity up to 1 litre. They will measure mass from 0 to above 1kg using whole kg and grams and measure volume from 0 to above 1 litre using whole litres and ml

Measures: mass and capacity

Look at the bar model. What is the missing part?

Look at the scales. What is the mass of the bowling ball? 

Starting with the lightest, put these masses in order. 

Look at the scales. What is the difference in the mass that these scales are showing?

Aisha has some apples and pears. The apples have a mass of 3 kg and the pears have a mass of 800 g. Aisha puts the apples and pears on the same scales. What is their total mass?

Which of these units should the mass of a pebble be measured in?

Look at the bar model. 100 is composed of five equal parts of {{ }}.

Look at the scales. What is the mass of this box?

Look at these scales. Which is showing the greater mass?

Starting with the smallest mass, put the scales in order of the mass they are showing.

Look at these scales. What is the total mass of the orange and lemon?

This lesson will be removed by end of Summer Term 2025.

Measure mass in whole kilograms and grams

Lesson outcome

This lesson will be removed by end of Summer Term 2025.