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A hands-on foam eruption kit from Mark Rober's CrunchLabs line, built around the classic elephant toothpaste reaction. Kids mix the ingredients and watch foam shoot up to about 15 feet, with an adjustable nozzle to steer the blast. It is a step up from a baking-soda volcano: repeatable up to six times with the included supplies, then again with common household ingredients. Best for curious kids around 8 and up who like big, messy, visible results; the payoff is the eruption itself, not a long build.
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Lowest price we've seen: $24.97 on Nov 12 at Walmart. Tracked across 3 stores since Nov 12.
Buyers rate it highly and mostly talk about the size of the eruption and how much kids enjoy it. Some note the mess and that the fun is over quickly.
The CrunchLabs Elephant Toothpaste Blast is a hands-on science kit based on the Elephant Toothpaste experiment from Mark Rober, a former NASA engineer. It is reimagined for kids to do at home. Mixing the ingredients creates a foaming eruption that can shoot over 15 feet (4.57 meters) into the air.
An adjustable nozzle lets you control the reaction. You can change your setup and the flow to see how small changes affect the result. The kit supports up to 6 blasts, and you can keep experimenting afterward with simple household ingredients.
