4steps from the big bang
10things can go into it
rock
NaturalMineral
Most of Earth's crust is silicate rock, built mainly from silicon and oxygen. The oldest crystals found are about 4.4 billion years old.
First appeared4.4 billion years ago
Made Of
Everything is made of something.← What it takes
What it leads to →
Most of Earth's crust is silicate rock, built mainly from silicon and oxygen. The oldest crystals found are about 4.4 billion years old.
From the big bang to rock
The most direct chain from the start of the universe, following what things are made from and, for living things, what they evolved from. Each step shows when it first appeared.
big bang13.8 bn yrs ago
Hhydrogen13.8 bn yrs ago
star13.6 bn yrs ago
Ooxygen13.6 bn yrs ago
rock4.4 bn yrs ago