What makes up our world?

To understand the biggest thing, the universe, it helps to look at the smallest things. Scientists discovered that all the stuff around us is made up of atoms.

By delving inside the atom, they found the nucleus, and inside the nucleus protons and neutrons. When they looked closer they found that protons and neutrons are made up of quarks, particles that scientists think are some of nature's smallest building blocks.

But how do these smallest particles shape our world?
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