For "moon sand", mix 9 cups play sand (really fine sand you can find at Wal-Mart). Add 3 cups cornstarch and 2 1/4 to 2 1/2 cups water. Start with 2 1/4 cup and continue adding water until you have the desired consistency. Mix well. Cover and store in an airtight container. You may need to add a few tablespoons of water if it needs to be moistened.
Make your own moon sand for the kids with 3 simple ingredients!
Approximate Time: 5 minutes
4 cups sand
2 cups corn starch
1 cup water
Mix all of the ingredients together and you've got moon sand! I used the blue play sand that I found at Walmart and mixed it all up in a plastic bin.
You can add more water as it dries out, just be careful not to add too much or it will become soupy. However, the kids will like playing with it when it was really wet too; it just won't stick together and stay together.
You could also get out some old cake pans or muffin tins to play with. It is also a good idea to lay down a splat mat or an old vinyl tablecloth underneath the play area to make for an easy clean up.
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