Calculating Density Worksheet
A Grade 8 science worksheet focused on understanding and calculating density using mass and volume measurements.
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Standards
Topics
Calculating Density
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems. Remember the formula for density: Density = Mass / Volume.
1. Density is a measure of how much is contained in a given .
2. The standard unit for mass in science is , and for volume, it is .
3. An object will float if its density is than the fluid it is placed in.
4. Which of the following formulas is used to calculate density?
Density = Volume / Mass
Density = Mass + Volume
Density = Mass / Volume
Density = Mass x Volume
5. A rock has a mass of 200 grams and occupies a volume of 50 cm³. What is its density?
0.25 g/cm³
4 g/cm³
150 g/cm³
250 g/cm³
6. A block of wood has dimensions of 5 cm x 4 cm x 3 cm. Its mass is 60 grams. Calculate the volume and density of the wood block. Show your work.
7. You have an irregularly shaped object. Describe the steps you would take to find its volume and then its density. What tools would you use?

8. An object with a density of 1.5 g/cm³ will float in water (density = 1.0 g/cm³).
True
False
9. If you cut an object in half, its density will also be cut in half.
True
False
10. An engineer needs a material with a density of at least 8.0 g/cm³ for a specific part. They have three samples:
- Sample A: Mass = 150 g, Volume = 20 cm³
- Sample B: Mass = 240 g, Volume = 30 cm³
- Sample C: Mass = 180 g, Volume = 25 cm³
Which sample(s) meet the engineer's requirement? Show your calculations for each sample.