Particle Physics

Smaller Than Atoms

Discover Smaller Than Atoms as a core part of Particle Physics. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.

What Is Particle Physics?

Particle physics studies the smallest building blocks of matter — quarks, leptons, bosons. The Standard Model is the theory.

The Atom — Inside the Smallest Bit

Atoms have a nucleus (protons + neutrons) surrounded by electrons. Most of an atom is empty space.

What's Inside Everything? Meet the Atom

Discover Atoms Are Small as a core part of Particle Physics. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.

Meet the Quarks

Discover Meet the Quarks as a core part of Particle Physics. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.

Tiny Bumper Cars: How Atoms Bump and Move

Discover Marble Smash Game as a core part of Particle Physics. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.