A rock has a mass of 210 grams and occupies a volume of 70 cm3. What is its density?

To calculate the density of the rock, use the formula:

\[
\text{Density} = \frac{\text{Mass}}{\text{Volume}}
\]

Given:
- Mass = 210 grams
- Volume = 70 cm³

Substituting these values into the formula:

\[
\text{Density} = \frac{210 \, \text{g}}{70 \, \text{cm}^3} = 3 \, \text{g/cm}^3
\]

So, the density of the rock is **3 g/cm³**.

Would you like more details or have any questions about the solution?

Here are 5 related questions to expand this concept:
1. What is the density of a substance if it has a mass of 500 grams and occupies a volume of 250 cm³?
2. How would the density change if the volume doubled while the mass remained the same?
3. How do you convert density from g/cm³ to kg/m³?
4. What factors affect the density of a material?
5. How can you measure the volume of an irregularly shaped object like a rock?

**Tip**: Density is a characteristic property of a material and is independent of the amount of substance you have.

A rock has a mass of 210 grams and occupies a volume of 70 cm³. What is its density?

Learn how to calculate the density of a rock with a mass of 210 grams and a volume of 70 cm³. This step-by-step solution demonstrates the use of the density formula, making it suitable for students in Grades 6-8. Understand key concepts like mass, volume, and density.

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