2steps from the big bang
5things can go into it
water
NaturalMineral
Two hydrogen atoms and one oxygen. Some of the water on Earth is thought to be older than the sun.
First appeared4.4 billion years ago
Made Of
Everything is made of something.← What it takes
What it leads to →
Two hydrogen atoms and one oxygen. Some of the water on Earth is thought to be older than the sun.
From the big bang to water
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
water4.4 bn yrs ago