Ms. Ware- Earth Science-

• ? L.T.: I can explain the phases of the moon

• W.O.T.D.: Waning: less of the moons surface can be seen.

• Waxing: More of the moons surface can be seen

• DO NOW: Why do you think we have phases of the moon

http://antwrp.gsfc.nasa.gov/apod/image/9911/lunation_ajc.gif

Moon phases

• http://www.regentsearth.com/Video/YouTube%20HTM/Phases%20of%20the%20moon.htm

Ms. Ware- Earth Science- L.T.: I can explain the phases of the moon.

I can name various moon phases.

W.O.T.D.: Cyclic events: a repetition of events, events that occur in a cycle.

DO NOW:

1.) Why do we have phases of the moon?

2.) What are the phases of the moon?

*REMINDER: ALL HW DUE TOMORROW

ESRTs p15

because as the Earthrotates, the moon

revolves

How many hours is the moon visible each day?

Approximate Times of Moonrise and Moonset

   moonrise    moonset

new moon 06:00 AM 06:00 PM

waxing crescent 09:00 AM 09:00 PM

first quarter 12:00 PM 12:00 AM

waxing gibbous 03:00 PM 03:00 AM

full moon 06:00 PM 06:00 AM

waning gibbous 09:00 PM 09:00 AM

third quarter 12:00 AM 12:00 PM

waning crescent 03:00 AM 03:00 PM

new moon 06:00 AM 06:00 PM

http://www.wonderville.ca/v1/activities/phases/phases.html

Ms. Ware- 10/27/09- Earth ScienceWOTD: Geo-centric: Earth centered

Helio-centric: Sun centered

L.T. I can tell the difference between heliocentric and geocentric solar systems

Do Now: Draw or write about the life cycle of a star (use terms such as

nebula, protostar, main sequence, red giant, super nova, or white dwarf)

http://aspire.cosmic-ray.org/labs/star_life/hr_interactive.html

http://aspire.cosmic-ray.org/labs/star_life/hr_interactive.htmlH.R. interact diagram!!!

The Geocentric Theory

• The earth is located at the center of the universe and all the planets revolve around the earth.

Geocentric Cont (Aristotle (384-322 B.C.))…..

• The Geocentric theory was believed by the Catholic church especially because the church taught that God put earth as the center of the universe which made earth special and powerful.

• The idea of the Earth actually moving was widely felt as a foolish suggestion because, as they saw it, if the Earth was moving they would be able to feel it.

The Heliocentric Theory

• The Sun is the center of our solar system

Group Work: Work on the worksheet answer questions about the H.R. Diagram and

the theories….help each other out!!

• 1.) YOU ARE A MAIN SEQUENCE STAR…• a.) List the color, surface temperature, and luminosity of your star

• 2.) Name at least 1 star that is a main sequence star

• 3.) What does the graph tell you about star A?

• 4.) Plot the stars below on the graph. List what color each of those stars would be• Star D (Temperature 5000, Luminosity 50), Color:___________• Star E (Temperature 15000, Luminosity 25), Color:___________• Star F (Temperature 9000, Luminosity 1), Color:___________• Star G (Temperature 17000, Luminosity 99), Color:___________

• 5.) Draw the heliocentric and geocentric pictures below

• Prep for asessment:• Extra credit- work as a group to solve these answers • 1.) I run 10 miles per hour. How long would it take me to run 50 miles. • 2.) 50 ml to L (1000 mL= 1 L)• 3.)My car gets10 miles per gallon, if I drove 100 miles then how many galloons did I use up?

• Do Now- 5-10

• Review HR with interactive diagram- 5

• Helio vs Geo- 10

• Other solar systems have other suns….lead back to HR…answer questions 15

• If time- conversions

Ms. WareEarth ScienceL.T. I can understand the relationship between the distanceBetween foci and the eccentricity.10/20/09

W.O.T.D.: Ellipse- the shape the planet makes when it orbits around the sun

Do now: 1.) If a planet has a mostly oval orbit,Where do you think the planet would be fastest? Why?

2.) Which letter wouldit be winter? A

BC

D

Sun

Calculate the eccentricity of the ellipse below:

Formula:eccentricity = distance between foci length of major axis

length of major axis

4 miles8 miles

Lets try a problem!

Distance between foci: 4Length of major axis: 6

Distance between foci: 1Length of major axis: 8

4/6= .67….MORE ELLIPTICAL!!!

1/8= .125 MORE CIRCULAR!!!

STAR

FOCI DISTANCE= 60 mmMajor Axis= 90 mm

A

B

C

D

Questions: 1.) What is the approximate eccentricity?2.) As the planet moves from A to C, what happen to the gravitational attraction?3.) At which position does planet Q have the greatest velocity?

Work On Lab- 10 minutes!

Remember if finish early…Remember if finish early…

…….get workbook for homework….get workbook for homework…

……Quiz tomorrowQuiz tomorrow

……Presentations Thursday!Presentations Thursday!