8 th grade science do now monday, december 10, 2012 copy the table on page _138_ datequestionanswer...

8th Grade Science

Do Now Monday, December 10, 2012

Copy the table on page _138_

Date Question Answer

Monday 1. What characteristics do scientists use to classify stars?

2. When classifying a star, magnitude means the same as ___________.

Tuesday

Wed/Thurs

Friday

8th Grade Science

Today’s Schedule

1. Do Now2. White Board Review3. Quiz4. Light year

Essential Question

How is current scientific data about components of the universe used to develop theories explaining the origins of the universe?

Vocabulary

UniverseLight YearNebulaeGalaxiesHerztsprung-Russel diagramElectromagnetic Spectrum

Pre-AP Homework

Grade-Level Homework

Quiz Corrections

Study for Test next Tuesday

Quiz Corrections

Study for Test next Tuesday

Monday, December 10, 2012

8th Grade Science

Today we will… Monday, December 10, 2012

8.8(A) describe components of the universe, including stars, nebulae, and galaxies, and use models such as the Hertsprung-Russell diagram for classification

8.8(E) research how scientific data are used as evidence to develop scientific theories to describe the origin of the universe

8th Grade Science

BrainPop Video

Star Cycle Video

Black Holes Video


8th Grade Science

White Board Review

1. Describe the relationship between surface temperature and brightness of stars in the main sequence?


8th Grade Science

White Board Review

2. Using the HR Diagram, describe the temperature and magnitude (brightness) of Betelgeuse.


8th Grade Science

White Board Review

3. Where do black holes come from?

a) Astronomers have no idea.b) Astronomers think that massive stars

exploded and created them.c) Astronomers think that stars like our

Sun exploded and created them.d) There is no evidence that black holes

are real.


8th Grade Science

White Board Review5. As a star collapses and creates a black

hole, the mass of the star stays the same, but the volume decreases. What effect does the change in volume have on the density of the black hole?

a) The density increases.b) The density decreases.c) The density stays the same.d) There is no way to keep the mass the same

and change the volume.


8th Grade Science

White Board Review6. If a star has a low surface temperature and

is considered very dim, where would you expect it to be located on the Herztsprung-Russell diagram?

a) In the lower, right corner.b) In the upper, right corner.c) In the upper, left corner.d) In the main sequence.


8th Grade Science

White Board Review7. In the HR diagram, massive stars tend to be

either blue or white in color. What does this tell us about these stars?

a) These stars have low surface temperatures.b) These stars are very dim stars.c) These stars are not in the Main Sequence.d) These stars have high surface

temperatures.


8th Grade Science

White Board Review8. Ultraviolet, x-ray, visible, and microwave

are all members of the…

a) Periodic Table.b) Tools used by medical professionals.c) Electromagnetic (EM) spectrum.d) Elements of the sun.


8th Grade Science

White Board Review

9. What group of stars does the Sun belong to?


8th Grade Science

White Board Review

10. Based on the Spectral Data for Element A, which of the following stars contains Element A?

Spectral Data for Element A

a)

b)

c)

d)


8th Grade Science

QUIZ

predator/prey

interactions


8th Grade Science

Light Year

Write the word “Light year” vertically on page _139__. Read the STEMScopes reading about light years and then write a sentence or phrase next to each letter.


L

I

G

H

T The distance light travels in one year

Y

E

A

R

8th Grade Science

Do Now Tuesday, December 11, 2012

On page _138__, answer the following question.Date Question Answer

Monday

Tuesday If the sun is a main sequence star, why does it appear so much larger than other main sequence stars?

Wed/Thurs

Friday

8th Grade Science

Today’s Schedule

1. Do Now2. Time Travel3. Exit Ticket

Essential Question


Vocabulary


Pre-AP Homework


Correction Due Friday

Major Test Next Tuesday

Correction Due Friday

Major Test Next Tuesday

Tuesday, December 11, 2012

8th Grade Science

Today we will…

8.8(D) model and describe how light years are used to measure distance and sizes in the universe


8th Grade Science

Time Travel

Distances to stars and celestial objects are immense.

60 miles/hour

600 miles/hour

25,000 miles/hour.

LIGHT 186,000 miles/second


8th Grade Science

Time Travel

Imagine that with new technology you can build a time machine that travels at light speed.

Write on page 141 of your notebook:

The unit used to express stellar distance is the light-year, which is the distance that light travels in a year.

Light-year = 5.8 trillion miles(5,800,000,000,000 miles)


8th Grade Science

Time Travel

Using the charts at your table, calculate the distance from the sun of your planet or galaxy for our scale model.

1 light year= 1 millimeter


1 mm

1 light year

Distance in Light Years

x x10 mm

1 cm x

100 cm

1 m ꞊

1

8th Grade Science

Time Travel

1. Measure the from the Earth, the scaled distance.

2. Using a paperclip, attach the card to the string in the appropriate place.

3. Fill in your table about the other planets and galaxies.


8th Grade Science

Time Travel

Video: Star Size Comparison

Video: The true size of our world


8th Grade Science

Exit Ticket

Are light years a measurement of distance or time? How do you know?


8th Grade Science

Do Now

On page __, describe a situation when an astronomer would use light-years as the measurement.

Wednesday & Thursday, December 12 & 13, 2012

8th Grade Science

Today’s Schedule

1. Do Now2. Milky Way Galaxy3. Notes4. Card Sory5. “Monster in the Middle”

Essential Question


Vocabulary


Pre-AP Homework


8.8 B/D 8.8 B/D

HW due on Friday HW due on Friday


8th Grade Science

Today we will…

8.8(B) recognize that the Sun is a medium-sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousands of times closer to Earth than any other star.


8th Grade Science

Milky Way Galaxy Wednesday & Thursday, December 12 & 13, 2012

Using the sand, create a spiral galaxy on colored paper at your table.

8th Grade Science

Milky Way Galaxy Wednesday & Thursday, December 12 & 13, 2012

Notes

8th Grade Science

Card Sort Wednesday & Thursday, December 12 & 13, 2012

Each group will be given 9 pictures of galaxies.

Sort the galaxies by shape.

8th Grade Science

Card Sort Wednesday & Thursday, December 12 & 13, 2012

Spiral

Elliptical

Irregular

8th Grade Science

Video Wednesday & Thursday, December 12 & 13, 2012

Monster in the Middle

8th Grade Science

Do Now Friday, December 14, 2012

On page __, write half a page to a full page explaining what all you have learned in this unit.

8th Grade Science

Today’s Schedule

1. Do Now2. Review Game3. Finish “Monster in the

Middle”

Essential Question


Vocabulary


Pre-AP Homework


8.8 B/D 8.8 B/D

HW due today HW due today

Friday, December 14, 2012

8th Grade Science

Today we will… Friday, December 14, 2012

8.8(B) recognize that the Sun is a medium-sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousands of times closer to Earth than any other star.

8.8(D) model and describe how light years are used to measure distance and sizes in the universe

8th Grade Science

Review Game Friday, December 14, 2012

I am, Who is?

8th Grade Science

Video

Monster in the Middle

Friday, December 14, 2012

8 th grade science do now monday, december 10, 2012 copy the table on page _138_ datequestionanswer...

Documents

tuesday8th grade science

brightness of stars

massive stars

dim stars

group of stars

main sequence

hr diagram

density decreases