Measure mass in whole kilograms and grams | Maths | Quizalize & Oak National Academy

Starter quiz

Which of these units should the mass of a pebble be measured in?
- centimetres
- metres
- litres
- grams ✓
Look at the bar model. 100 is composed of five equal parts of ______.
- '20' ✓
Look at the scales. What is the mass of this box?
- 120 g
- 140 g ✓
- 150 g
Look at these scales. Which is showing the greater mass?
- A
- B ✓
- They both show the same mass.
Starting with the smallest mass, put the scales in order of the mass they are showing.
- 1
  
  ⇔
  
  A
- 2
  
  ⇔
  
  C
- 3
  
  ⇔
  
  B
Look at these scales. What is the total mass of the orange and lemon?
- 260 g
- 270 g
- 275 g ✓

1 kg is composed of ______ grams.
- 10
- 100
- 1000 ✓
Look at the bar model. What is the missing part?
- '400 g' ✓
Look at the scales. What is the mass of the bowling ball?
- 4 kg 100 g
- 4 kg 200 g
- 4 kg 250 g
- 4 kg 500 g ✓
Starting with the lightest, put these masses in order.
- 1
  
  ⇔
  
  900 g
- 2
  
  ⇔
  
  1 kg 100 g
- 3
  
  ⇔
  
  1 kg 500 g
- 4
  
  ⇔
  
  2 kg
Look at the scales. What is the difference in the mass that these scales are showing?
- 100 g
- 200 g
- 250 g
- 500 g ✓
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?
- '3 kg 800 g' ✓

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1 kg is equivalent to 1000 g.
The mass of heavy objects can be given in whole kilograms and grams.
We can use our knowledge of 1 kg and the composition of 1000 to determine the mass of objects.

Composition of 1,000 is Year 4 content so children may make mistakes when giving masses in kg and g.

Use of stem sentences to help: 1,000 is composed of __ equal parts of __.

Mass - 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.
Gram - A gram is a metric measure of mass. A paper clip has a mass of about 1 gram. The abbreviation is g.
Kilogram - Kilograms are use to measure the mass objects that are heavy. A pineapple has a mass of about 1 kilogram. The abbreviation is kg.