National Geographic Mega Science Kit: Real Results, Real Mess, Worth It

The Mega Science Kit delivers genuine science experiments — crystal growing, volcanic eruptions, slime making — and the results are impressively good for a boxed kit. The trade-off is that it generates about the amount of mess you’d expect from letting a kid run science experiments in your kitchen. The ratio works out in your favor: the experiments actually work, the instructions are clear, and the wow factor is real. Just don’t do it on a white tablecloth.