Universe and Solar System Quiz

Olympus Mons, A gigantic volcano roughly the size of the state of Arizona, is on which planet?

The small irregular bodies that joined to form protoplanets are called ______________.

Approx how long ago do cosmologists believe the universe was created?

What is the name given to the hypothesis for the formation of our solar system?

Which planet is the smallest?

The shape of the orbits of planets in our solar system can be described as

The asteroid belt lies between the orbits of

What property of matter enabled the differential layering of the solid earth?

What is the glowing head of a comet formed when frozen gases vaporize called

Dirty Snowball is a term given to what solar system objects

Scientists believe the core of the earth is made of molten_______ & ________

Which planet rotates on horizontal axis

The process where particles collide and stick together.

Which planet is the largest?

Fragments of rock that orbit the sun are called ____________

What do we call groups of galaxies in relative proximity to each other?

Which type of galaxy is the Milky Way an example of?

The strongest winds in the solar system are found on what planet

Which planet is the farthest from the sun?

A nebula can best be characterized as 

Which of the following planets has no moons?

Saturn and Jupiter are the two planets without moons

What region lies beyond the orbit of Neptune?

What planet is closest to the Sun?

What scientist discovered that most of the galaxies in the universe are moving away from us?

The rocky inner planets are referred to as the _________ planets.

The outer planets or Gas Giants are collectively known as the _________ planets.

Earth is unique among the planets because it has