The Oort Cloud and Outer Solar System

Scientists who study the solar system and outer space are called ______________.

• astronomers

• astronauts

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

Most comets originate in the ________.

• asteroid belt

• Milky Way

• Kuiper belt

• Oort Cloud

A chunk of ice and dust whose orbit is usually a long, narrow ellipse is a ___________.

• meteor

• meteorite

• comet

• asteroid

Tags

NGSS.MS-ESS1-3

A spherical shell of celestial bodies believed to surround the Sun far beyond the orbits of the outermost planets.

• Oort Cloud

• Kuiper Belt

• Sun

• Asteroid

Tags

NGSS.MS-ESS1-3

a band of small celestial bodies beyond the orbit of Neptune

• Asteroid

• Moon

• Meteor

• Kuiper Belt

An object that orbits a star and is nearly spherical in shape but shares its orbital path with other objects of similar size but also isn't classified as a satellite.

• Comet

• Asteroid

• Dwarf Planet

• Moon

Which of the following planets orbit outside of the asteroid belt, making them Outer Planets? ​ (a)   ​ (b)   ​ (c)   ​ (d)  

• Jupiter

• Saturn

• Uranus

• Neptune

• Mercury

• Venus

• Earth

• Mars

What do we call an icy remnant of the Solar System's formation?

• Asteroid

• Comet

• Meteoroid

• Moon

What is the Oort Cloud primarily composed of?

• Ice and rock

• Gas and dust

• Metallic elements

• Liquid water

Which of the following is considered the boundary of the Solar System?

• Asteroid Belt

• Kuiper Belt

• Oort Cloud

• Heliosphere