Explore the Density Lab: Mass, Volume & Identify the
Weigh mystery blocks, measure their volume by water displacement and work out the material from the density. Free, no signup, runs in your browser.
- Free to use
- No signup
- Nothing to install
- Runs in your browser
Illustration. Open the tool for the real thing.
See it in action
The Density Lab: Mass, Volume & Identify the with sample data entered and the result showing.
What is the Density Lab: Mass, Volume & Identify the?
Weigh mystery blocks, measure their volume by water displacement and work out the material from the density. It runs in your browser, so a change to a setting or a drag on an object shows up at once.
Jewellers, geologists and engineers identify materials by measuring density.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Density = mass ÷ volume.
Volume of an irregular object is measured by water displacement.
Each material has its own density.
Find the density of block A and name the material.
Try to find gold.
Press Reveal to check your answers.
Used for
Pick one to see how it fits.
Physics learners
Physics students in middle school, high school and first-year university, teachers who want a quick demonstration for the projector, and anyone revising for exams.
Try it freeTeachers
For teachers: project the Density Lab: Mass, Volume & Identify the Material on the board, let students predict the result, then run it together and test this: Try to find gold. For students: change one thing at a time and write down what changes.
Try it freeHow it compares
A plain look at this tool next to the usual alternative.
| This simulation | Textbook diagram | |
|---|---|---|
| Interactive | Drag, tap and change settings | Fixed picture |
| Install | Nothing to install | Not needed |
| Cost | Free to use | Depends on the book |
Questions people ask
How do you measure the volume of a block by water displacement?
Lower it into water and read how much the level rises; the rise equals the volume.
How can I identify a material?
Compute its density and compare it with a table of known densities.
Is the Density Lab: Mass, Volume & Identify the Material free to use?
Yes. The Density Lab: Mass, Volume & Identify the Material is free, needs no signup or download and runs in your web browser. It is part of the Physics group of AZRS simulations.
Does the Density Lab: Mass, Volume & Identify the Material work on a phone or tablet?
Yes. The Density Lab: Mass, Volume & Identify the Material takes touch input as well as mouse input, so you can use its 12 adjustable settings with a finger. A larger screen makes the controls and graphs easier to read.
How do I use the Density Lab: Mass, Volume & Identify the?
1. In the Density Lab: Mass, Volume & Identify the Material, use the controls to change Blocks, Custom block material, Block mass, Block volume (custom density only), Liquid, and more. The simulation reacts instantly. 2. In the Density Lab: Mass, Volume & Identify the Material, pick an option such as One custom block, Same mass, Same volume, Mystery blocks to switch modes or load an example. 3. In the Density Lab: Mass, Volume & Identify the Material, press "Put all blocks back", "Reset" to start, reset or change what is happening. 4. Start with this experiment: Find the density of block A and name the material. Drag any glowing handle, object or slider with your mouse or finger and the Density Lab: Mass, Volume & Identify the Material responds in real time. 5. Change one setting at a time and watch which readout moves, then compare it with this idea: Density = mass ÷ volume.
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Weigh mystery blocks, measure their volume by water displacement and work out the. Free to use.
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