LMF loves getting messy. I do, too. Anything LMF can explore with her hands, touch, taste—full body experience—she’s in!
Goop is an old favorite for sensory play. I love it because it is easy to make, baby safe for tasting, lasts a few days, and uses materials most already have in their kitchen—cornstarch & water.
I make goop using small metal mixing bowls with a side loop handle. My Mother has a set of these bowls and would use them with us as kids. My brother-in-law gave us Tovolo Stainless Mixing Bowls - Set of 3 of for Christmas. The loop helps keep the bowl in place when mixing vigorously and worst comes to worst, if the bowl goes flying it's metal, it might dent but it won't break.
At one point I took LMF’s hands in mine and poured the goop over both of our hands so LMF could experience how the substance changes. Goop is a non-Newtonian fluid, meaning its viscosity is variable--it will feel solid in the bowl or your hands, and then become more fluid.
As always, LMF jumped right into her goop. I am always amazed how much she enjoys the texture of goop. Some goop even got in her hair!
Digby even joined in on the fun. He likes the taste of goop!
For older children goop is a marvelous material to encourage explorations into viscosity, pondering is it a solid or a liquid? Interested in exploring viscosity more? Consider checking out The Pitch Drop Experiment at the University of Queensland. It's fascinating. I remember reading about it for the first time in The New Yorker a few years ago. This is the longest running lab experiment as scientists wait for the pitch droplet to fall. This substance is so viscous it takes years for one droplet to fall. They even have a cam on the pitch - check it out.
How do I make Goop?
½ cup Cornstarch
¼ Warm Water
Measure the cornstarch and add to mixing bowl.
Add the warm water and mix with your hands.
If needed, add more water if the goop is too firm.
*the ratio for the ingredients is 2 parts cornstarch to 1 part water. You can see below I made a batch using 1/3 cup of cornstarch.
Consider adding food coloring or glitter with older children to the mix to change things up.
Best way to clean up goop is to let it dry and sweep it up.
Explore goop on a washable flat surface (I once offered it to LMF on our old hardwood floors and it was tough to clean in the grooves between the floorboards.
Consider using a cloth lined plastic table cloth as a base. When you are done, fold into itself bring to the bathroom shower and simply rinse off.
For larger or smaller batches, the ratio is 1 part water 2 parts cornstarch, so you can easily make a smaller or larger batch as needed. I've made as much as a full box of cornstarch with ease.
Safety Reminders: Adult supervision is highly recommended for all of the activities, ideas, and materials featured on this blog. As parents, guardians, and caregivers, you know your children best and your own comfort level with the different suggested activities. Littleredbarn is not responsible for any injury or damage from reproducing the activities, materials, or ideas from this blog.
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