Expanding Ivory Soap Microwave Experiment Mombrite Drop the non ivory soap bar in the water. any other soap bar besides ivory should sink. place the bar of ivory soap (use a new, dry one if you did step #1 above) in the middle of a plate. place the soap bar and the plate in the microwave. cook the bar on high for 2 minutes. watch the soap bar as it starts to grow about 20 seconds in and. The science behind the expanding soap. ivory soap is whipped with air when it’s made. those tiny air bubbles also contain water molecules. when these air bubbles and the water within are heated in the microwave, the water vaporizes, changing from a liquid to gas. according the charles’ law, as the temperature of a gas increases, the volume.
Expanding Ivory Soap Microwave Experiment Mombrite Unwrap your bar of soap. unwrap your bar of ivory and place it on a microwaveable plate. place in microwave. put your plate of soap in the microwave. heat for 1 2 minutes. run microwave on high for 1 2 minutes. today i set my microwave for 1:20. you can’t really overcook your ivory, but it will eventually reach a point where it stops expanding. When you heat ivory soap in the microwave, the appearance of the soap is changed but no chemical reaction occurs. this soap is still useable as soap! see what fun thing we did with our expanded ivory soap at the end. the soap expands in size because the air and water inside the soap heats up. the expanding gas (air) pushes on the softened soap. Not super pretty, but having the numbers on the marshmallows makes it easier to keep track when you look back at the pictures. place one marshmallow on a plate and microwave it for 10 seconds. remove the marshmallow from the microwave and place an uncooked marshmallow next to it for comparison. The ivory soap microwave experiment is one of the coolest science experiments for kids. all you have to do is put ivory soap in the microwave and watch it grow! check out the step by step tutorial here and do this fun activity with your kids this summer.
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