To make 10 volume peroxide out of 30 volume peroxide, you will need to dilute it with water. The ratio of 30 volume peroxide to water should be 1:2. So, for every 1 part of 30 volume peroxide, you will need to add 2 parts of water.

Here are the steps on how to make 10 volume peroxide out of 30 volume peroxide:

1. Gather your materials. You will need:

* 30 volume peroxide

* Water

* Measuring cup

* Mixing bowl

* Spoon

2. Measure out the 30 volume peroxide. You will need 1 part of 30 volume peroxide.

3. Measure out the water. You will need 2 parts of water.

4. Add the 30 volume peroxide to the mixing bowl.

5. Add the water to the mixing bowl.

6. Stir until the 30 volume peroxide and water are well combined.

7. Your 10 volume peroxide is now ready to use.

Note: 10 volume peroxide is a strong oxidizing agent and can cause skin irritation. Be sure to wear gloves when handling it and avoid contact with your eyes.