Goo --- which people typically create for a science project or simply for fun --- is most commonly made using cornstarch or borax. If you don't have these ingredients, you can use other materials that are sure to be in your kitchen. Creating a goo for fun is an ideal activity for any rainy day when the kids are cooped up in the house. What's more, goo ingredients are inexpensive, making it an economical craft idea.
Cover the crafting area with newspaper to keep the surface from getting dirty or stained while making goo. Gather all the ingredients and place them nearby for easy accessibility.
Mix one cup each of table salt, flour and water in a mixing bowl. Stir thoroughly until all the ingredients are moistened and combined to create goo.
Add a few drops of food colouring of your choice and stir thoroughly. If you want to create more than one colour of goo, make additional batches of the material.
Stir to combine ingredients each time you want to use the goo in case any separation occurs between play times.