Concentrations in Science

Concentrations in Science

Read each question carefully and answer to the best of your ability. This worksheet will test your understanding of solutions and concentrations.

1. What is a solution where a large amount of solute is dissolved in a small amount of solvent called?

2. Which of the following is an example of a dilute solution?

1. The substance that dissolves in a solvent to form a solution is called the  .

2. When you add more water to a concentrated juice, you are making it more  .

3. The   is the substance that does the dissolving in a solution.

1. Imagine you have two glasses of lemonade. One tastes very strong and sour, and the other tastes weak and watery. Which glass contains a more concentrated solution of lemonade? Explain your reasoning.

2. Describe one everyday example of changing the concentration of a solution. What are you adding or removing to change its concentration?

1. A concentrated solution has a small amount of solute and a large amount of solvent.

2. Adding more solvent to a solution makes it more dilute.

Look at the image below. It shows a beaker. Imagine you are adding sugar (solute) to water (solvent) in this beaker. Draw dots to represent sugar particles to show a dilute solution and a concentrated solution in two separate beakers.

Dilute Solution

Concentrated Solution

Use the words below to complete the sentences.

1. When salt dissolves in water, the salt is the  .

2. A mixture formed when a solute dissolves in a solvent is called a  .

3. If a drink has a very strong flavor, it is likely a   solution.