Which of the following tiny items is the smallest?
- A. atom
- B. molecule
- C. quark
- D. neutron
29% of players knew the correct answer: C., quark
Quarks represent the smallest known subatomic particles. These building blocks of matter are considered the fundamental particles of the universe.
Listen and learn more about today's topic with Murray and Tamika.
Question of the Day: Quarks: The Building Blocks of Matter
Were you taught in school that atoms were the building blocks of matter? We were too. But as Murray and Tamika discuss in this Flashcast, a tiny subatomic particle called the quark is now considered the smallest in the world.

To answer today's question, just ask your smart speaker: "What's the question of the day?"
