Before and After
This creature was alive before the first hominis.
Who are the dinosaurs.
This thing brought water to the Earth.
What is asteroids.
A mass of rock and water that is unique in our solar system because it supports life
What is the Earth
This happened 30 seconds into Earth's history (3 million years ago)
What is the formation of 20 proto planets
This event happened before the Earth formed a magnetosphere.
What are the 4 layers (inner core, outer core, mantle, crust)
This brought oxygen to the earth.
What are stromatolites.
The four layers of the Earth.
What are the inner core, outer core, mantle, crust
This happened at 11:50 P.M
What is the extinction of Dinosaurs.
This event happened before the Earth was molten lava and the moon was 15 times closer than it is today.
What is the Thea collision.
Early earth was degrees F..
What is 8, 500 degrees F.
This planet collided with the Earth and formed the Earth.
What is Thea.
This happens after the banded iron formations absorb all oxygen for a billion years.
What is the rise of oxygen levels.
This is why Earth's layers formed the way they did.
What is buoyancy and density.
An accumulation of interstellar gas and dust.
What is a molecular cloud.
This happens to the Earth after asteroids bring water to Earth.
What is red skies and a green ocean.
The first 4 planets.
What is Mercury, Venus, Earth and Mars.