Meteorites and the Formation of the Solar System

Evidence for the age of the solar system comes from

The solar nebula collapsed to form

The distance from the sun where hydrogen could condense and form planets is called the

Accretion works best if an object has a diameter of at least

It makes sense that the terrestrial planets are all closer than the 3.5 AU distance of the frost line.

The 3 types of meteorites are stones, irons, and

Forming planets are called

The sun first was heated by

The most common meteorites are

What may have helped the solar nebula start collapsing?

Our solar system started off as

Jupiter protects us from many comets and asteroids.

All astronomers think the Jovian planets formed in their current orbital positions.

Small objects that accrete to form protoplanets are called

If it is not a meteorite, it is a