Ooze: A Cornstarch Colloid *

Areas of Science Chemistry
Difficulty
Time Required Very Short (≤ 1 day)
*Note: For this science project you will need to develop your own experimental procedure. Use the information in the summary tab as a starting place. If you would like to discuss your ideas or need help troubleshooting, use the Ask An Expert forum. Our Experts won't do the work for you, but they will make suggestions and offer guidance if you come to them with specific questions.

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Abstract

In this project you'll make a liquid that will contradict your expectations. Hold it loosely in your hand and it will drip off your fingers, but grab it tightly and it will feel solid. Slap a bowl of it with a spoon, and instead of splattering, it solidifies. Do background research on colloids, and be sure you can explain the following terms: colloid, Newtonian fluid, non-Newtonian fluid, thixotropic. (For instructions on how to make it see the link listed under Exploratorium, 1998, in the Resources section, below.) What happens if you put it on a flat surface? Does ooze leak through a small hole in a piece of paper? Are there other examples of non-Newtownian fluids? What do they have in common? How does "ooze" differ from a solution, such as sugar in water? (Exploratorium, 1998; Gardner, 1999, 30)

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MLA Style

Science Buddies Staff. "Ooze: A Cornstarch Colloid." Science Buddies, 28 July 2017, https://www.sciencebuddies.org/science-fair-projects/project-ideas/Chem_p031/chemistry/ooze-a-cornstarch-colloid. Accessed 12 Dec. 2019.

APA Style

Science Buddies Staff. (2017, July 28). Ooze: A Cornstarch Colloid. Retrieved from https://www.sciencebuddies.org/science-fair-projects/project-ideas/Chem_p031/chemistry/ooze-a-cornstarch-colloid


Last edit date: 2017-07-28

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Experimental Procedure

For this science project you will need to develop your own experimental procedure. Use the information in the summary tab as a starting place. If you would like to discuss your ideas or need help troubleshooting, use the Ask An Expert forum. Our Experts won't do the work for you, but they will make suggestions and offer guidance if you come to them with specific questions.

If you want a Project Idea with full instructions, please pick one without an asterisk (*) at the end of the title.

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