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The elephant's toothpaste experiment shows how a catalyst can speed up the rate of a reaction. Hydrogen peroxide breaks down slowly into water and oxygen. Adding a catalyst such as sodium iodide ...

An exciting Coke and Mentos elephant toothpaste experiment.

October Sky, meets teacher “Mr. Keeting” in Dead Poet’s Society, meets an older version of Michael Phelps, meets a local ...

In 1942, Sigmund Rascher and others conducted high-altitude experiments on prisoners at Dachau. Eager to find out how best to save German pilots forced to eject at high altitude, they placed ...

What is an African forest elephant? Of the two species of African elephants, forest elephants are both smaller and more rare than their cousins, African savanna elephants (Loxodonta africana).

By Emily Anthes Emily Anthes previously reported on another elephant at the Berlin Zoo who learned how to peel bananas. Elephants are serious about self care. To stay cool, and protect their skin ...

A white elephant gift exchange is one of the few gift-giving events where the rules are minimal and your choices are only limited by price (which is perhaps the golden rule: Do not go over budget).

For many people, whitening toothpaste is the easiest and most affordable tool to turn to if you're trying to brighten up your smile. While a solid toothpaste marketed for its teeth-whitening ...

When you buy through our links, we may earn a commission. Learn more. Using toothpaste made with fluoride is the key to cavity-free teeth, dentists say. Choosing the right toothpaste is ...