From atoms to forces — explore the fundamental sciences of physics and chemistry.
3 quizzesPhysics and chemistry are the twin foundations of our understanding of matter, energy, and the fundamental forces that govern everything from the nucleus of an atom to the expansion of the cosmos. Physics asks the deepest questions — Why does time flow in one direction? What is dark matter? How did the Big Bang ignite a universe from nothing? — while chemistry translates those fundamental rules into the endless variety of substances and reactions that make up the material world.
From Newton's laws of motion to Einstein's relativity, from Mendeleev's periodic table to quantum mechanics, these disciplines have given humanity its most powerful tools: electricity, pharmaceuticals, semiconductors, nuclear energy, and the ability to sequence DNA. The periodic table alone organizes 118 known elements into a structure that predicts the behavior of atoms and molecules with extraordinary precision.
Whether you're fascinated by particle physics, thermodynamics, chemical bonding, or the history of scientific revolutions, test your knowledge of the sciences that explain what everything is made of — and why it behaves the way it does.
