Density, Mass and Volume: Free Printable Worksheet for Year 9
Density, Mass and Volume is a free printable worksheet for Year 9 (ages 13 to 14), in Key Stage 3. Use the formula triangle. It comes from the Mini Minds Hub, a growing library of free printables from Jaques of London, the British games and toy company that has been making games for families since 1795.
It is two A4 pages. Page 1 is the activity for children. Page 2 is for the grown-up: it has notes on how to use the sheet, help for children who find it hard, a stretch idea, and the answers. Print it at home or in the classroom. Black and white printing works well.
What is on the sheet
This worksheet includes numbered questions with space to answer.
A look at what children will meet:
- Mass 200 g, volume 50 cm3. Find the density.
- Mass 90 g, volume 30 cm3. Find the density.
- Density 2, volume 40 cm3. Find the mass.
- Density 5, volume 12 cm3. Find the mass.
- Mass 150 g, density 3. Find the volume.
- Mass 84 g, density 7. Find the volume.
- Mass 360 g, volume 90 cm3. Find the density.
Who this is for
Year 9 (ages 13 to 14) in Key Stage 3.
Key Stage 3 covers Years 7 to 9, ages 11 to 14. Learners are moving from remembering facts to applying them, so tasks that ask for a reason or a method are worth more than quick answers. Use it at home, in class, on a rainy afternoon or at a family gathering.
What children practise
- Formulas
- Ratio
- Units
Use density = mass ÷ volume to find missing values.
Learning focus and curriculum link
Subject: Maths. Key stage: Key Stage 3. It supports the subject at this level through short, focused practice.
This sheet is a practice and play activity. It supports classroom learning and is not a replacement for it.
How to use it
- Print both pages. Page 1 is for the child. Keep page 2 for the grown-up.
- Draw the triangle with mass on top and density and volume at the bottom. Cover the one you need.
- Work through the activity together the first time. Talk about each choice.
- Check against the notes on page 2 and the answers.
- Come back to it another day. Repeating a familiar activity builds confidence.
If it feels too hard
Work through the first two together, writing the formula each time.
To stretch confident children
Make up two more questions and swap them with a friend.
Make it a game
Weigh a small object and compare it with another of the same size.
Tips for parents and teachers
- Print on plain A4 paper. Black and white printing works too.
- Work through it together the first time, then let children try alone.
- Praise effort and thinking, not only correct answers.
A screen-free maths activity for Year 9
Children spend a lot of time on screens. This is a screen-free maths activity that needs only paper and a pencil. It works as quiet time after school, a rainy day activity, a holiday boredom buster or a calm moment before bed. Screen-free learning gives eyes a rest and gets children talking, thinking and writing by hand.
Free maths resources for teachers
Teachers can use this worksheet as a starter, a plenary, an early finisher task, a supply teacher resource, a homework task or a table activity. It needs no preparation beyond printing. The learning focus and skills are listed above so you can match it to your planning, and page 2 gives support and stretch ideas for mixed ability groups.
Maths ideas for parents at home
You do not need to be a teacher to use this. Read the sheet through, sit with your child for the first go and let them lead. Short bursts of ten to fifteen minutes work better than long sessions. If you are looking for free maths worksheets for Year 9, or simple home learning for the weekend or school holidays, this is a good place to start.
Home education and tutoring
Home educators and tutors can print this as part of a wider maths plan. It pairs well with books, outdoor play and everyday talk. Because the sheet is free and printable, you can use it again for brothers and sisters or for revision a few weeks later.
Why it helps children learn
Hands-on, paper based activities slow learning down in a good way. Children read carefully, think before they answer and see their own progress on the page. Games and challenges add a reason to keep going. That mix of play and practice is why printable activities like this are popular with parents, teachers and home educators.
Curriculum links for teachers
This sheet supports the areas below. It is matched to the published England frameworks. Please check it against your own school plan.
| Framework | Subject or area | Strand | Year |
|---|---|---|---|
| National Curriculum (England) | Maths | Ratio, proportion and rates of change | Year 9 |
What children will be able to do
- I can use density = mass ÷ volume.
- I can find a missing mass or volume by rearranging the formula.
- I can check that my units match.
Check it worked
Ask these when the sheet is finished. Listen for the reasoning, not just the answer.
- How do you rearrange the formula to find mass?
- What units does your answer have, and why?
- Which of two objects is denser, and how do you know?
More like this
Same subject, one year down: Ratio Recipe Race
Frequently asked questions
What age is Density, Mass and Volume for?
It is written for Year 9 (ages 13 to 14), in Key Stage 3.
What will children practise?
Use density = mass ÷ volume to find missing values.
How do I use it?
Draw the triangle with mass on top and density and volume at the bottom. Cover the one you need.
What if it feels too hard?
Work through the first two together, writing the formula each time.
Is it free?
Yes. It is free to print for home and classroom use.
Is Density, Mass and Volume suitable for teachers to use in class?
Yes. Teachers can use it as a starter, plenary, early finisher task, homework or table activity. It needs no preparation beyond printing.
Is this a screen-free activity?
Yes. It is a screen-free printable that needs only paper and a pencil, so it works well for quiet time, rainy days and school holidays.
Can I use it for home education?
Yes. Home educators and tutors can use it on its own or as part of a wider plan. It is free to print again for brothers, sisters or revision.
How long does it take?
Most children finish page 1 in 10 to 20 minutes. The notes on page 2 suggest ways to make it shorter or longer.
Do I need to print in colour?
No. It prints well in black and white on plain A4 paper.
More free printables
More for Key Stage 3 | More maths printables | Free printable games | All Mini Minds Hub resources