unit 14 wwk: we will know the characteristics comets, asteroids, meteorites, the asteroid belt, as...
TRANSCRIPT
Unit 14
WWK: We will know the characteristics comets, asteroids, meteorites, the asteroid belt, as well as the
Kuiper Belt…
Joshua T. BaumBach
Comets
• Comets are cosmic snowballs of frozen gases…• Characteristics of Comets…– The core of the comet is made up of dust, ice and
other particles…– The coma of the comet is the gaseous atmosphere…– The tail of the comet is gases from the coma being
released…– The average size of a comet is of 12 miles in diameter,
while the coma can be up to 1 million miles and the tail up to one hundred million…
Asteroids
• Asteroids are small, rocky, metallic figures which float in space…
• Characteristics of Asteroids:– The make up of asteroids is not really set in stone.
Some are completely rocky with icy layers, while others have nickel-iron cores…
– The shape of an asteroid is similar to crumbling up a ball of paper… two crumpled papers may look similar, but there will be differences in the jaggedness…
Meteorite
• Meteorites are meteoroids that break through the Earth’s atmosphere without burning up, and then impact the surface of the Earth, and survives the impact…
• Characteristics of Meteoroids:– Are usually very small, but some can get to be massive…– As they enter Earth’s atmosphere the heat of the
atmosphere and chemical reactions taking place on the meteorite produce a glowing tail, which is usually referred to as a shooting star…
Asteroid Belt
• The Asteroids Belt is a ring of asteroids located between the orbits of Mars and Jupiter…
• Types of asteroids in the belt:– Carbonaceous: made up of Carbon, and are found
along the outer regions of the belt…– S-Types: silicon rich, are found more towards the
inner region of the belt…– M-Types: metal rich, they are scattered throughout
the asteroid belt…
Kuiper Belt
• The Kuiper Belt is a collection of asteroids that extend beyond our planets…
• It is much larger than the asteroid belt, and most of the asteroids that make it up are composed of rock and metal…
K.S.
• What is the object that breaks through the Earth’s atmosphere and hits the earth… and survives?
Planet Earth Wwk- we will know how earth compares to the
planets in our solar system.
Objectives
• Learn how earth is similar and different to the various planets in our solar system.
• Learn the planets positions and their orbit.• Learn about the gas giants.• Learn about the terrestrial planets.• Learn how the sun effects the earth.
chartMercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto
Orbit 88 days 8 months 1year
1.9years
12years
29.5years
84years
165years
250years
Position 1st from the sun
2nd from the sun
3rd from the sun
4th from the sun
5th from the sun
6th from the sun
7th from the sun
8th from the sun
9th from the sun
Distance from the sun
35,983,610 67,232,360 92,957,100 141,635,300 483,632,000 888,188,000 1,783,950,000 2,798,842,000 3,670,050,000
moons 0 0 1 2 63 18 21 8 3
radius 2,440,000 6,051,000 6,378,000 3,397,000 71,492,000
60,268,000
25,559,000
24,764,000
1,160,000
The Gas Giants• Gas giants are planets composed of mostly gas, except for their cores which are spinning balls
of liquid compounds and heavy metals.
• Gas planets are usually larger and further from the sun. for example Jupiter, Neptune , Saturn and Uranus are all gas giants.
• The gas giants have very cold atmospheres do to their distance from the sun, and are usually accompanied by many Satellites and ring systems.
Terrestrial planets• There are four terrestrial planets in our solar system. Mercury, Venus, Earth and Mars, and like
the gas giants they share certain qualities.
• Terrestrial planets are composed mostly of rock and metals, with liquid core of mostly iron, which is covered by a mantle.
• The terrestrial planets also tend to be much smaller, and are accompanied by few to no satellites.
• Mars is known as the red planet.
The Earth• The earth is the third planet from the sun, and just happens to be the only one able to support
life.
• The earth is the largest terrestrial planet, and is accompanied by a single moon.
• The earth is composed of a liquid iron core, a mantle and a crust which is 70% covered by water.
• Earth is known as the blue planet.
• The sun is actually a star, and thanks to the solar radiation it gives off life in our solar system is possible.
• The sun is immense in size dwarfing even Jupiter the largest of the planets , and is made up of molten metal . Some patches on the suns surface are cooler which causes them to darken , producing a sun spot .
• A tall tale about sun spots is that they affect electronics on earth .
K.S
• Which planet has the greatest number of moons?
Pluto
• Born before 2006, yes it is a planet. • Takes longest to orbit around sun
WWK: We will know about the different planets in our solar system and their relationship to
each other.
By: Taylor Karkkainen
Solar system
• Solar system - the Sun and all the planets, satellites, asteroids, meteors, and comets that are subject to its gravitational pull
• The Solar System includes four terrestrial planets and four gas giants.
Planet types
• Terrestrial planets- is a planet that is composed of primarily silicate rocks or metals.
• Gas giants - is a large planet that is made mostly of rock or other solid matter. There are four gas giants in our solar system: Jupiter, Saturn Uranus and Neptune.
The sun
• The Sun is the star in the center of our Solar System.
• It has a diameter of about 1,392,684 km, about 109 times that of Earth.
• Photosphere- The luminous envelope of a star from which its light and heat radiate. The part of the sun that is visible.
The sun
• Every planet in our solar system orbits the sun• Orbit - The curved path of a celestial object or
spacecraft around a star, planet, or moon
video
• http://youtu.be/z_RAEESmsrs
Kick starter
• How many times bigger is the suns diameter than the earths?
By: Andy Hawe
Earth and the Solar System
WWK
• We will know how the planets interact with eachother.
Rotation
• Planets (a celestial body moving in an elliptical orbit around a star) rotate around the sun in an Elliptic orbit around the sun because of the gravitational interactions between planets and the Sun. The planets rotate counter-clockwise direction.
Asteroid belt
• The asteroid belt is a belt of asteroids that orbit around the sun. They are thought to be created when all the planets were forming and chunks of rock get ripped off of planets in formation. The asteroid belt contains billions — maybe even trillions — of asteroids.
• The asteroid belt was discovered in 1801.
The sun
• The sun is very important to all the planets.• It brings heat to Earth and sustains life on
Earth.• The gravitational pull keeps all the planets in
orbit.
Telescopes
• The Hubble telescope is the most powerful telescope on Earth.
Kickstarter
• When was the asteroid belt discovered?
video
• http://youtu.be/tY2n2CHMXfI