Biology
Begin with cells, then look at the evolution of plants and animals, and finally at the many complicated ways that small creatures and big creatures interact - what we call birth, diseases, digestion, and death.
Physics
How did the universe get started? Why is there weather? How does electricity work? What's inside this computer? What's nuclear power? And what about machines and engines?
Chemistry
What are atoms? How do you use atoms to make metal, or plastic, or glass? How do you clone an animal? How do you invent medicines?
Geology
What are rocks made of? Why do earthquakes happen? Where do mountains come from?
Math
Numbers came first, but then pretty soon people invented geometry. From there we can go on to algebra, trigonometry, and calculus. See how mathematics is the foundation on which the universe is built, the deepest form of nature!
