This is a cloud of dust and gas in space.
What is a nebula?
This is a large rocky object in space.
What is an asteroid?
It is what killed the dinosaurs.
What is an asteroid that hit the Yucatan Peninsula.
This is how asteroids changed Earth's climate.
What is sending debris in the air cooling the Earth down?
These are the most common elements in the solar system?
What is Helium and Hydrogen?
A small body of matter, up to a 1/2 mile, that will become a planet.
What is a planetesimal?
This is a frozen left-over from the formation of the solar system.
What is a comet?
The moon was grabbed by early Earth's gravitational field.
What is the "Capture Theory"?
Comets brought a lot of this to our early Earth.
What is water?
This is why rocky planets formed close to the sun.
What is they could withstand the heat?
This is a star that does not have the mass or heat for fusion to happen.
What is a proto-star?
These are pieces of larger objects like asteroids, comets, planets and the moon.
What is a meteoroid?
The Early Earth spun so fast a bulge of material was flung out and became the moon.
What is the fission theory?
This is how the moon helped with climate.
What is stabilizing our tilt so we do not have frequent ice ages?
This is why the gas planets are so much bigger than our terrestrial planets.
What is there is more gas in our solar system than rocks and minerals?
This is the sticking together of ice and gas.
What is condensation?
This is what we know of as a falling star.
What is a meteor?
This is how the Apollo rocks debunked the capture theory.
What is that the moon rocks were nearly identical to Earth so did not come from some where else?
The gas giants are made of these frozen gasses.
What is water, methane, and ammonia?
This is the sticking together of solids and metals.
What is acretion?
This is when a meteoroid goes through the atmosphere and hits the ground.
What is a meteorite?
This is the most current theory on how the moon was formed explained.
What is the collision of Proto-Earth and Theia sent debris that became the moon (or was it two)?
This is what comets might have brought to start life.
What is bringing glycine (an amino acid) and phosphorus (DNA)?
What is the icy objects are too far apart?