My kids love to make stuff in the kitchen; preferable messy stuff! And explosives with noxious smells is also a plus. While I refuse to publish my recipes for bombs and explosives online, I do have some great recipes for messy, sticky, bouncy, glittery goo! Here are ten recipes for silly putty, noise or farting putty, flubber, play dough, melting goop or oobleck and moon sand (like the over-priced stuff!) I am known in my local realm as the Diva of Goop (an dubious honor). At my house, science is noisy and messy!
Noise Putty or Farting putty: In the vernacular, silly putty has devolved to farting putty, because of the curious resemblance in sound to bodily functions. This very simple recipe has wowed generations of kids in my 25 year career as reigning Science Goop Diva. First, you will need blue liquid laundry starch, found in the laundry aids section of the store. Sta-Flo is the most common brand. Next, you will add white, school glue. In a cup, add the two ingredients and mix with your fingers. Keep mixing until all the gluiness is gone and you have a stretchy, non-sticky putty. To make the ‘farting’ noise, fold the putty to trap air and create bubbles. You can also squash the putty into a small container to make the farting noises.
Melting Putty: (aka Oobleck) This simple recipe breaks the laws of matter and physics. Add a small amount of water to corn starch. It will ‘harden’ into a solid until you try to pick it up; then it will ‘melt’ into a liquid in your hands. Fill a small child’s pool with cornstarch and water for hours of messy fun in the yard.
Moldable Sand (aka marketed as ‘Moon Sand’) This dough is an excellent recipe to use to teach children about ratios. The ratio here is 2:1:.5; 2 cups of commercial play sand, (available at reasonable costs at Toys R Us, Lowe’s, Home Depot and Menard’s) to 1 cup corn starch to one half cup of cold water. Add any food coloring that you wish to water. Blend corn starch and cold water first. Cold water is recommended because corn starch dissolves best in cold water and does not clump together. Work the sand and corn starch together to blend thoroughly. You might want mix up a large batch for your classroom sand table. Make batches up to give as gifts also.
Perfect Play Dough: I cup of salt, 2 cups of flour, 1 cup hot water, 1 teaspoon of cream of tartar or alum, food coloring, cooking oil (add 2T or so until proper consistency is achieved). Quality of dough depends upon weather. Too sticky? Add flour. Too dry? Add water or oil.
Soap Dough: I cup powdered laundry detergent, an eighth of a cup of water, food coloring. Mold or sculpt as you would with play-dough. Store in refrigerator.
Dryer Lint Dough: Making this dough is a great way to teach kids about ratios. The ratio is 1.5:1:.3 One and one half cup dryer lint to one cup cold water to one third cup of flour. Add a drop of oil to prevent mold. Lint dough requires cooking, so get adult permission or ask for assistance. Dissolve flour in cold water and blend to get rid of lumps gently blend in lint and stir constantly until mixture forms stiff peaks. When color spread over boxes or balloons and smooth, like you would with paper mache. Lint dough is also the perfect ‘green’ eco-friendly science craft dough.