Comets

Short-term comets have orbital periods that last for __________ Earth years? 

• More than 300 Earth years

• More than 200 Earth years

• Less than 200 Earth years

• More than 200 Earth years

The coma becomes ____ and​ ____ as it gets ​near to the sun.

• larger; brighter

• smaller; brighter

• smaller; dimmer

• larger; dimmer

Tags

NGSS.MS-ESS1-1

NGSS.MS-PS1-4

Fill in the blanks: Ion tails appear to be _____, ​_____, and _____.

• blue
• thin
• linear
• red
• thick

Where are long term comets created?

• The Kuiper Belt

• The Oort Cloud

• The Orison Belt

• The Planets

True or False: Comets move about in our solar system in highly elliptical orbit.

• True

• False

Tags

NGSS.MS-PS2-4

What are some key characteristics of a Dust Tail?

• Curved

• Linear

• Yellowish and white hue

• Blue

• Thin

True or False: The Oort cloud is a spherical halo of materials surrounding the solar system out to about 50,000 AU, and this where long term comets originate.

• True

• False

Comets consist of all the following parts...

• The Nucleus

• The Core

• The Coma

• The Dust Tail

• The Ion Tail

____ ____ come from the Kuiper Belt.

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

Which of the following materials are comets not composed of?

• Dust

• Rock

• Planetary Debris

• Ice

Tags

NGSS.MS-PS1-1