## Density Calculations Worksheet for Science 8

Understanding density is an important concept in science, as it helps us to determine the mass of an object in relation to its volume. This worksheet is designed to help students practice their density calculations and reinforce these key concepts. By working through these problems, students will become more familiar with how to calculate density and apply it to various scenarios.

### What is Density?

Density is a measure of how much mass is contained in a certain volume of a substance. It is typically expressed in units of grams per cubic centimeter (g/cm³) or kilograms per liter (kg/L). The formula for calculating density is:

Density = Mass/Volume

This means that to find the density of an object, you need to know both its mass and its volume. The relationship between mass, volume, and density is important in the study of properties of different materials and substances.

### How to Calculate Density

To calculate the density of an object, you first need to measure its mass using a scale, such as a balance. The mass is typically measured in grams or kilograms. Next, you need to measure the volume of the object. The volume can be calculated using various methods, depending on the shape of the object.

For regular-shaped objects, such as cubes or rectangular prisms, the volume can be calculated using the formula:

Volume = Length x Width x Height

Once you have both the mass and the volume of the object, you can then calculate the density using the formula:

Density = Mass/Volume

### Sample Density Calculations

Let’s work through a sample density calculation to demonstrate how this concept can be applied in practice.

Imagine you have a metal block with a mass of 500 grams and a volume of 100 cubic centimeters. To calculate the density of the metal block, you would use the formula:

Density = 500 g / 100 cm³ = 5 g/cm³

Therefore, the density of the metal block is 5 grams per cubic centimeter.

### Practice Problems

Now it’s time for you to practice your density calculations with the following problems:

1. Calculate the density of a liquid with a mass of 800 grams and a volume of 400 milliliters.

2. A wooden block has a mass of 1200 grams and a volume of 300 cubic centimeters. Calculate the density of the wooden block.

3. If a gas has a mass of 0.5 kilograms and a volume of 2 liters, what is the density of the gas?

4. A sphere has a mass of 600 grams and a volume of 200 cubic centimeters. Calculate the density of the sphere.

### Conclusion

By practicing these density calculations, students can develop a better understanding of this important concept in science. Density is a fundamental property of matter that can be used to identify and characterize different substances. By mastering these calculations, students will be better equipped to analyze and interpret the properties of various materials in the world around them.