Science project

How do Different Kinds of Natural Hair Respond to Bleach?

Research Questions:

Today, many people bleach their hair. But the result is not one uniform shade. Instead, different kinds of bleached hair turn out differently. In this experiment, we'll explore how that works.


  • Hair bleach
  • Gloves
  • Test subjects willing to provide hair samples:
    • Five blonde test subjects
    • Five black-haired test subjects
    • Five brown-haired test subjects
    • Five test subjects with thick, kinky hair
    • Five test subjects with thin, straight hair
  • Microscope
  • Timer
  • Paper and pen

Experimental Procedure:

  1. Obtain hair samples from your test subjects and organize them in small baggies. Label with the test subject's hair color or texture.
  2. Follow the instuctions on the hair bleach and bleach each hair sample.
  3. After the wait is over, examine the hair with the naked eye and under a microscope.
  4. Evaluate your results.

Terms/Concepts: Hair bleach; different hair colors.


Disclaimer and Safety Precautions provides the Science Fair Project Ideas for informational purposes only. does not make any guarantee or representation regarding the Science Fair Project Ideas and is not responsible or liable for any loss or damage, directly or indirectly, caused by your use of such information. By accessing the Science Fair Project Ideas, you waive and renounce any claims against that arise thereof. In addition, your access to's website and Science Fair Project Ideas is covered by's Privacy Policy and site Terms of Use, which include limitations on's liability.

Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.

Add to collection

Create new collection

Create new collection

New Collection


New Collection>

0 items