Exam 15: The Origin of the Solar System

All planets rotate in the counterclockwise direction as seen from the north.

The condensation sequence suggests that ____________ should condense as solids closest to the Sun.

All planets in the solar system orbit counterclockwise as seen from the north.

Asteroids are an example of planetesimals.

How does the solar nebula theory explain the present densities and chemical compositions of the planets

Why are more massive planets circling stars easier to detect than low-mass planets

The hydrogen and helium in our solar system were created from subatomic particles about ____________ years ago.

When particles in the solar nebula grew large enough, they stopped growing by accretion and began growing by condensation.