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Kids Activity: Make Slime Using Cornstarch and Water

Gina Young · March 24, 2016 · 4 Comments

Looking for a fun activity for your kids? Try making this easy recipe for slime using cornstarch and water. But this isn’t your typical slime— it goes from solid to a liquid state, and then back again!

Looking for a fun activity to do with the kids? Make this 2 ingredient clime recipe using cornstarch and water! It's fun, it's messy, and it's a fun science experiment too! #kidsactivity #thingstodowithkids #kidstuff #slime #cornstarchslime #kidscience #scienceexperiement #science #homeschool #scienceactivity

Do your kids like to get their hands messy?  Of course they do!  So that is what is so great about this project—your kids can get messy, and maybe even learn something too!  Fun science experiment!

Items needed to make cornstarch slime:

  • cornstarch
  • water
  • measuring cups
  • large bowl
  • plastic fork or spoon
  • food coloring *optional
  • plastic bag (for storage and later disposal)
Cornstarch and Water Science Experiment | Kids Activity | Money Savvy Living

Directions to make 2 ingredient slime:

Mix ½ cup cornstarch with ¼ cup water.  Combine until the mixture is somewhat stiff, yet gooey.  You can add a bit more cornstarch or water depending on consistency.  What you are looking for is a substance that acts as both a solid and a liquid.

 
Looking for a fun activity to do with the kids? Make this 2 ingredient clime recipe using cornstarch and water! It's fun, it's messy, and it's a fun science experiment too! #kidsactivity #thingstodowithkids #kidstuff #slime #cornstarchslime #kidscience #scienceexperiement #science #homeschool #scienceactivity #scienceforkids
#scienceideas
#kidsscienceprojects
#scienceforpreschool
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The scientific explanation:
 
The cornstarch and water mixture acts like a solid sometimes and a liquid at other times. This concoction is an example of a suspension – a mixture of two substances, one of which is finely divided and dispersed in the other. In the case of the cornstarch quicksand, it’s a solid dispersed in a liquid.
 

When you punch the cornstarch quicksand, you force the long starch molecules closer together. The impact of this force traps the water between the starch chains to form a semi-rigid structure. When the pressure is released, the cornstarch flows again.

All fluids have a property known as viscosity – the measurable thickness or resistance to flow in a fluid. Honey and ketchup are liquids that have a high resistance to flow. Water has a low viscosity.  Sir Isaac Newton said that viscosity is a function of temperature. So, if you heat honey, the viscosity is less than that of cold honey. The cornstarch and water mixture and quicksand are both examples of non-Newtonian fluids because their viscosity changes when stress or a force is applied, not when heat is applied.

Solid to liquid… apply a bit of force… and back to a solid.

Very cool.  Very messy.  Your kids will be entertained for hours!

Looking for a fun activity to do with the kids? Make this 2 ingredient clime recipe using cornstarch and water! It's fun, it's messy, and it's a fun science experiment too! #kidsactivity #thingstodowithkids #kidstuff #slime #cornstarchslime #kidscience #scienceexperiement #science #homeschool #scienceactivity #scienceforkids
#scienceideas
#kidsscienceprojects
#scienceforpreschool
#kidsscience
#scienceexperimentforkids
#sciencefun
#scienceactivityforkids

*Make sure to dispose of this concoction in a plastic storage bag.  You DO NOT want to pour this down the drain, as it could cause a blockage.

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Filed Under: Fun for Kids Tagged With: kids, science experiment

Reader Interactions

Comments

  1. Lisa @ Fun Money Mom says

    March 25, 2016 at 9:53 pm

    How fun! My girls would have a blast with this…we’ll have to try it soon!

    Reply
  2. Leah says

    March 28, 2016 at 4:59 pm

    My kids love making this. It’s messy but can keep them occupied! 🙂

    Reply

Trackbacks

  1. Share the Wealth Sunday Link Up {#49} - Money Savvy Living says:
    March 26, 2016 at 7:01 pm

    […] Money Savvy Living: Kids Activity: Make Slime Using Cornstarch & Water […]

    Reply
  2. 101 Cheap But Fun Things To Do As a Family says:
    June 12, 2017 at 6:56 am

    […] Make slime (we call it oobleck!). […]

    Reply

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