Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of...
-
Upload
wilfred-watts -
Category
Documents
-
view
219 -
download
2
Transcript of Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of...
![Page 1: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/1.jpg)
Section 3-5Comets, Asteroids and
Meteors
![Page 2: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/2.jpg)
Objectives
• J.3.5.1. Describe the
characteristics of comets.
• J.3.5.2. Identify where most
asteroids are found.
• J.3.5.3. Explain what meteoroids
are and how they form.
![Page 3: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/3.jpg)
Comets
• Comets are loose
collections of ice,
dust, and rocks
whose orbits are
usually very
eccentric, long,
narrow ellipses.
Objective J.3.5.1
![Page 4: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/4.jpg)
A Comet’s Head• The head of the comet
consists of the nucleus
and the coma.
• The nucleus is the solid
chunk that is revolving
around the Sun.
• The coma is the cloud od
dust and ice that forms
around the nucleus.
![Page 5: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/5.jpg)
Evolution Of A Comet
![Page 6: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/6.jpg)
The Comet’s Tail
• The comet’s tail is the
debris being blown off
the nucleus by solar
wind as the comet
approached the Sun.
• What always pushes the
tail away from the Sun.
• Solar Wind
![Page 7: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/7.jpg)
Comet McNaught In 2007
![Page 8: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/8.jpg)
Comet Lovejoy In 2014
• Comet Lovejoy is fading
now as it has made it’s
way around the Sun
and is heading out into
the Solar System again.
What is the twisting
feature beneath it?
• The Great Wall of China
![Page 9: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/9.jpg)
A Comet’s Tail
• A comet’s tail usually
splits into a gas tail and
a dust tail. The gas tail
will be more influenced
by solar wind and point
more away from the sun
while the dust tail will
be behind the nucleus.
![Page 10: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/10.jpg)
The Origin Of Comets
The Kuiper Belt The Oort Cloud
![Page 11: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/11.jpg)
The Asteroid Belt
• The asteroid belt is
located between the
orbits of Mars and Jupiter.
Most asteroids orbit the
Sun in this belt. Objective J.3.5.2.
![Page 12: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/12.jpg)
Asteroids
![Page 13: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/13.jpg)
Meteroroids
• Meteoroids are chunks of
rock or ice that have broken
off of comets or asteroids
and continue to orbit in the
solar system. Objective J.3.5.3
![Page 14: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/14.jpg)
Meteors• When a meteoroid
enters Earth’s
atmosphere it becomes
a meteor. They appear
as a streak of light
across the sky. Objective
J.3.5.3.
• You might call it a “shooting
star” but it’s not a star at
all.
![Page 15: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/15.jpg)
Meteorites
• Fortunately, most
meteors burn up in the
atmosphere before
they ever hit the
ground.
• If the meteor strikes the
ground, it’s name changes
to meteorite. This is a
name change only.
![Page 16: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/16.jpg)
The Hoba Meteorite
• The Hoba Meteorite is
the largest known
meteorite on Earth as
well as the largest piece
of natural iron on Earth.
• It’s so massive it has
never been moved from
where it was discovered.
![Page 17: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/17.jpg)
Meteor Crater In Arizona
![Page 18: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/18.jpg)
Shoemaker-Levy 9
![Page 19: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/19.jpg)
Shoemaker-Levy 9
![Page 20: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/20.jpg)
Shoemaker-Levy 9
![Page 21: Section 3-5 Comets, Asteroids and Meteors. Objectives J.3.5.1. Describe the characteristics of comets. J.3.5.2. Identify where most asteroids are found.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649f265503460f94c3d430/html5/thumbnails/21.jpg)
Shoemaker-Levy 9