Question

how did the earth form

Answer 1

The earth was formed after the big bang.... It turned out to be a mixture of dust particles and gases

Answer 2

The Earth forms. The Earth is thought to have been formed about 4.6 billion years ago by collisions in the giant disc-shaped cloud of material that also formed the Sun. Gravity slowly gathered this gas and dust together into clumps that became asteroids and small early planets called planetesimals.