Joshua, age 7, Shoreview, Minnesota Richard Feynman, a famous theoretical physicist who won the Nobel Prize, said that if he could pass on only one piece of scientific information to future ...

A molecule of pure water is made of two hydrogen atoms bonded to an oxygen atom. As explained in a previous Curious Kids article, scientists think the water on Earth may have come from the melting ...

Since atoms are smaller than the wavelength of visible light, we can’t see them directly—but they still interact with light in ways that create color. Discover how atomic structure influences ...

Image credit: MIPT.For more on the structure of atoms, see this post. Ultimately, the number of protons is what determines the atomic number. For example, helium has two protons, so its atomic ...

But the solar wind isn’t very dense - it has much, much fewer atoms in it than air, for example. This means it can’t carry much heat in it and so it can’t explain how the warmth from the sun ...

Created by chemistry set maker Thames & Kosmos along with Pittsburgh-based Schell Games, Happy Atoms teaches kids about building molecules using magnetic atoms that connect in “happy” ways.

But many kids only learn about them through an abstract form: the periodic table. One renowned game designer, Jesse Schell, is aiming to bring these elements to life with a toy-and app combo that lets ...