3steps from the big bang
11things can go into it
gravel
NaturalMineral
Broken rock. By weight, concrete is mostly gravel and sand.
First appearedDate not yet known
Made Of
Everything is made of something.← What it takes
What it leads to →
Made from
Broken rock. By weight, concrete is mostly gravel and sand.
From the big bang to gravel
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
Lilithium13.8 bn yrs ago
concretec. 300 BCE
graveldate unknown