Test # 5 on 12/20/12

Review all the previous posts and videos...

Read ch 10/11 in your review books

look over all worksheets....

check off the blue review sheets

Earth Science TEST #5 on Thursday 12/20/12
Study from your review book and handouts for multiple choice and free response questions.

• Eccentricity / orbital velocity
• Apparent diameter (size and angular)
• Geocentric and Heliocentric models
• Moon phases, eclipses and tides
• Latitude, longitude – coordinates
• Polaris / Big Dipper / Little dipper and pointer stars

Coordinate system: LONGITUDE and LATITUDE

Each degree is divded to 60 Minute ( ' ) and each min is divided to 60 sec ( " )

so one degree is 360 "

3rd marking period Homework

#7 Blue/Red shift worksheet

#8 A: Vocabulary from Topic 4
  8 B: Green Review books 

#9 : Constellation - DRAW   Big and Little dipper with "North Star" Polaris
       Remember the Constellation worksheet.... where we see the stars at NIGHT.
       So now in Dec 21 we would see GEMINI, not Sagittarius... This is ASTRONOMY not Astrology!
Can you shade in the area of earth that would be night time?

      

                                                                                                  or

but actually

#10: Draw the orientation of the SUN - Earth - moon for the following phenomenon
       Lular eclipse vs Solar Eclipse
       Spring Tide vs. Neap tide

end of 2012
Happy New Year!
2013

#11: Green Review Book
Do the following Read pg 254-255
Answer Q's 1,3,4,6,7,8,9,10,11,15,16
on pg 260-261 # 17,18,20,21
Pg 266 #1

Review on eccentricity...
Pg 283- 285 #17, 18,19 23,25,28,30,31,32,33
Pg 290-291 # 38-43
pg 294-294 #2,3,7
Pg 298 #40

Angular measure: minutes of arc.... Review books are in now! HW

***********************************************************************************
The review books are in! you are given your own copy and you need to keep it NEW, No marking in the book. you will have to return them in June before the Regents.

***********************************************************************************
HW#8
Read pg 272 to 278
Do the following questions & answer pg 276 to 278 #2, 4to 15 then pg 294 #8
(copy the question then answer)
********************************************************************************

more info: http://www.physicalgeography.net/fundamentals/6h.html

Angular Measure: Degrees, Minutes, and Seconds of Arc

Degrees, minutes, seconds

The apparent sizes of distant objects and things in the sky are measured by the angle they subtend at the eye. (It's a common error to suppose that the Sun, say, looks about as big across as a dinner plate; to some people, it seems bigger than that, but to others, it's smaller. So such attempts to describe apparent sizes in linear terms lead to misunderstandings and confusion. Angular sizes can be measured with instruments, and are a standard we can all agree on.) If you are unfamiliar with angular measure, there are 90° in a right angle; 60 minutes of arc in one degree; and 60 seconds of arc in a minute. (We say “minutes of arc” to distinguish them from minutes of time.) Minutes of arc are designated by a (') sign; so “ 30' ” is read “30 minutes”. To give some familiar examples:

The width of your thumb, seen at arm's length, is about 2°. The angular diameter of the Sun or the Moon is only about 1/4 of that, or just over 1/2 degree, which is 30 minutes of arc. (Yes, they look bigger than that near the horizon; the increased apparent angular size is an optical illusion.) A person with normal vision can just distinguish two points separated by about 1' of arc. (That means you can forget about seconds of arc unless you're using a telescope.)

The angular height of mirages is always less than a degree. But, because of the horizon illusion mentioned above, people often suppose they are bigger than that.

Distant objects

Because the distances of miraged objects are always much greater than their sizes, the angles they subtend are always small. Small angles are readily related to the sizes and distances of the objects: the ratio of the size to the distance is the angular size measured in radians.

*******************************************************************************
http://www.ustream.tv/channel/nasa-msfc
http://earthsky.org/tonight/geminid-meteor-shower-peaks-on-night-of-december-13

http://www.boston.com/news/weather/weather_wisdom/2012/12/geminid_meteor_shower_should_b.html

The final meteor shower of the year is going to take place tonight and if you are lucky to have clear skies this should be quite the show. Across much of the northeast and back into the northern Rockies skies will be clear and perfect for viewing. There is a "new moon" tonight and this means no moonlight to spoil the show. While you will be able to see a few shooting stars after sunset the display really gets going after 10PM and will peak a couple of hours after midnight. However, you will definitely see some shooting stars well before peak. I circled in blue areas of the country that will have the best viewing tonight on the map below. I'd love to hear your experience on the meteor shower or on this blog. Please follow and chat with me on Twitter at @growingwisdom and check out my latest videos at GrowingWisdom.com

A brand new meteor shower possible
Astronomers are particularly excited about tonight's Geminid meteor shower as there could be even more shooting stars added to the mix. The earth may pass through comet Wirtanean in the next few days. Most meteor showers are caused when the earth passes through the debris of a comet. As of yet, the Earth hasn't run into comet Wirtanean's debris field. However, tonight may be different. If the earth passes through the debris it would result in a new shower of meteors that would combine with the Geminid's. That means we could be looking at 60-100 meteors per hour. The additional meteors would be coming from the constellation Picses (The Fish), so the shower could be called the Piscids.
The Geminids will appear to emanate from the constellation Gemini (The Twins) and are a result of the Earth hurling through debris shed by the huge, enigmatic asteroid 3200 Phaethon. This makes this meteor shower unusual because it isn't caused by comet particles. Remember, the most important thing about viewing the event is get away from as much light as possible. The darker your surrounding the better your viewing will be and the more meteors you will see.
Jupiter
If you are looking up tonight you might spot Jupiter as well. Jupiter is one of the brightest objects in the sky rising after sunset to the southeast and remaining in the sky most of the night. If you want to see Mars look to the southwestern sky at sunset as the reddish object will be that planet setting for the night. If you are up super early you can catch Venus rising in the eastern sky about 2 hours before the sun.

Lab #6: Eccentricity of Planetary orbits... Kepler's 1st Law.

Do the pre-lab, so you will be able to finish the lab in 2 periods on Thurs.

Kepler's 1st Law:

background video on Kepler's eccentricity

more to about.... Extra credit (video reports)
earth's orbit not always the same....

Lab #6
Discussion Questions (1-14)

#14

3rd marking period - Moon phases and Tides...

Words to know:
From the review book Topic 4

axis (of rotation)        Foucault pendulum          Phases (of the moon)
constellation              geocentric model             tides
Coriolis effect            heliocentric model           time zone
eclipse                       local time

The Earth, Moon and Sun System
powerpoint link
 

The tides 

Worksheet  location - click on link

Bay of Fundy, Nova Scotia

you can watch this video >> if you challenge the current model how the "planets" move in space.

Look up! 2nd marking period summary

I recommand a brief review from this website. I didn't make this just a reference point. all rights goes to the original website. http://www.seasky.org/celestial-objects/celestial-objects.html

Our universe contains an amazing array of celestial objects, sometimes referred to as celestial bodies or astronomical objects. Though most of the observable cosmos is composed of empty space, this cold, dark void that is sparsely populated by a number of astronomical objects that range from the common to the bizarre. Known collectively by astronomers as celestial objects, celestial bodies, astronomical objects, and astronomical bodies, they are the stuff that fills the empty space of the universe. Most of us are familiar with the stars, planets, and moons. But beyond these everyday celestial objects, lies an amazing collection of other wondrous sights. There are colorful nebulae, delicate star clusters, and massive galaxies. Pulsars and quasars add to the mystery, while black holes swallow up every bit of matter that comes too close. And now, the search is on to identify the mysterious, invisible objects known as dark matter. Join Sea and Sky for an intriguing journey as we discover these amazing celestial objects. Click on any image below to find out more, or use the icons on the left side of the page to navigate your way through the celestial objects.

Stars		Planets		Moons		Asteroids & Comets

Nebulae		Star Clusters		Galaxies		Pulsars

Quasars		Black Holes		Dark Matter

All images in this section are copyrighted 1999 by J.D. Knight. ********************************************************************************************************************** more videos on ESC