Science Project:

Non-Newtonian Flow

3.8 based on 49 ratings

Research Question:

What is a Non-Newtonian fluid? How does it work?

If you need to cross a river of quicksand, what should you do? Run right across it, of course. If you run over a river of quicksand, it will act like a solid. If you slowly step into it, it will act like a liquid. Try out this science project to save yourself next time you find yourself sinking.

Materials:

  • Large bowl
  • Water, oil, or applesauce
  • 1 ½ cups of cornstarch
  • 1 ¼ cups of water
  • Sand

Experimental Procedure

  1. Fill a bowl with water, oil, or applesauce, all of which are considered liquid for the purposes of this experiment.
  2. Press two fingers into the substance. Then punch the substance with your fist. What happens?
  3. Press two fingers onto a solid surface, such as a tabletop. Punch the solid surface. What happens?
  4. Discard the substance in the bowl, and rinse out the bowl.
  5. Add about 1 ½ cups of cornstarch and 1 ¼ cups of water to the bowl.
  6. Mix the cornstarch and water together until the mixture is difficult to stir, but not too dry. If necessary, add a bit more cornstarch or water until you reach the desired consistency.
  7. Sprinkle sand over the surface of the mixture.
  8. Press two fingers into the mixture and observe what happens.
  9. Punch the mixture with your fist. What happens?
  10. Fill out a table, such as the one below, describing which aspects of the mixture are similar to a liquid, and which aspects are similar to a solid.

Terms/Concepts: Non-Newtonian fluid; What are the characteristics of solids and liquids?

References:

  • Experiments You Can Do in Your Backyard, edited by Joanna Callihan and Nathan Hemmelgarn. Pp 54-55.

Author: Keren Perles
Disclaimer and Safety Precautions

Education.com provides the Science Fair Project Ideas for informational purposes only. Education.com 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 Education.com that arise thereof. In addition, your access to Education.com's website and Science Fair Project Ideas is covered by Education.com's Privacy Policy and site Terms of Use, which include limitations on Education.com'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.

How likely are you to recommend Education.com to your friends and colleagues?

Not at all likely
Extremely likely