The Oort Cloud & Outer Solar System

Front

Comets lose material when they get near ___

Back

the Sun

Front

How long ago was our solar system formed?

Back

about 4.5 billion years ago

Front

Out in the chillier part of the Solar System, water came in the form of ___

Back

ice mixed with dust

Front

The discussed model, describing the evolution of the Solar System, was named after ___

Back

the city of Nice, France

Front

During the formation of the Solar System, which planet had the biggest effect on the iceballs? (Options: Mars, Saturn, Uranus, Neptune)

Back

Neptune

Front

The intense shower of objects that came screaming down from the outer solar system is called ___

Back

the Late Heavy Bombardment

Front

The doughnut-shaped region, just past Neptune, where icy objects have stable orbits is called ___

Back

the Kuiper Belt

Front

The second region of objects, composed of iceballs with highly tilted orbits, is called ___

Back

the scattered disk

Front

The scattered disk extends about ___ times farther out than Neptune.

Back

25

Front

The third region of icy objects, a spherical cloud which starts roughly 300 billion kilometers out, is called ___

Back

the Oort Cloud