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If you know a kid who wants to tackle the classic science project of exploding a volcano, we like the National Geographic Earth Science Kit. Like other volcano kits, it comes with a mold, plaster, and paint to make the volcano. Unlike other kits we tried, it also comes with “eruption powder A” (sodium bicarbonate) and “eruption powder B” (citric acid) to create the lava. (You can also combine baking soda and vinegar for a similar effect). This set includes additional science projects, such as crystal growing and a dig kit, as well as thorough instructions and a learning guide.