Density
identify substances based on their density
Start
1. Density definition
2. Density Formula
3. Mass
INDEX
4. Volume
5. Putting it together
Density
Density is a property that measures how tightly packed matter is within a substance
Density
Density depends on both mass and volume. The formula for calculating density is: Density= Mass/ Volume
Mass
- A measure of how much matter an object has.
- Typically measured in grams (g)
- Measured using a triple beam balance or digital scale
Finding the mass
Click on the triple beam balance to learn more about its use.
Volume
- How much space an object takes up
- Typically measured in cm3 or mL
- When measuring the volume of a cube or rectangular prism we can use the formula l x w x h to calculate volume
- When measuring an irregularly shaped object we can use the principle of displacement.
Volume
Click on each of the objects to learn how to calculate their volume
Copper Block
Gummy Bear
Finding the Density
Once you have found the mass and volume you can calculate the density using d=m/v. The density will tell you the identity of the material you are measuring.
How to read a triple beam balance
Add all of the sliders together to find the mass of the object For example: 200g + 60g + 3.5 g = 263.5g
Regular Objects
Use the formula l x w x h
Measure the length of the cube. All of the sides of a cube are the same length. If one of the sides measures 2.5 cm, then you would do 2.5 x 2.5 x 2.5 to find a volume of 15.6 cm3
Irregular Objects
Use displacement
Use a graduated cylinder with water to find the volume. Start with your grauated cylinder at a volume of 10 mL, add your gummy bear and see how much the volume went up. The difference between the volume after the gummy bear was added and before the gummy bear was added will tell you the volume of the gummy bear.
Density
Abigail Fletcher
Created on October 25, 2025
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Transcript
Density
identify substances based on their density
Start
1. Density definition
2. Density Formula
3. Mass
INDEX
4. Volume
5. Putting it together
Density
Density is a property that measures how tightly packed matter is within a substance
Density
Density depends on both mass and volume. The formula for calculating density is: Density= Mass/ Volume
Mass
Finding the mass
Click on the triple beam balance to learn more about its use.
Volume
Volume
Click on each of the objects to learn how to calculate their volume
Copper Block
Gummy Bear
Finding the Density
Once you have found the mass and volume you can calculate the density using d=m/v. The density will tell you the identity of the material you are measuring.
How to read a triple beam balance
Add all of the sliders together to find the mass of the object For example: 200g + 60g + 3.5 g = 263.5g
Regular Objects
Use the formula l x w x h
Measure the length of the cube. All of the sides of a cube are the same length. If one of the sides measures 2.5 cm, then you would do 2.5 x 2.5 x 2.5 to find a volume of 15.6 cm3
Irregular Objects
Use displacement
Use a graduated cylinder with water to find the volume. Start with your grauated cylinder at a volume of 10 mL, add your gummy bear and see how much the volume went up. The difference between the volume after the gummy bear was added and before the gummy bear was added will tell you the volume of the gummy bear.