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
White Board Review
1. Describe the relationship between surface temperature and brightness of stars in the main sequence?
Monday, December 10, 2012
8th Grade Science
White Board Review
2. Using the HR Diagram, describe the temperature and magnitude (brightness) of Betelgeuse.
Monday, December 10, 2012
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.
Monday, December 10, 2012
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.
Monday, December 10, 2012
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.
Monday, December 10, 2012
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.
Monday, December 10, 2012
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.
Monday, December 10, 2012
8th Grade Science
White Board Review
9. What group of stars does the Sun belong to?
Monday, December 10, 2012
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)
Monday, December 10, 2012
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.
Monday, December 10, 2012
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
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
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
Tuesday, December 11, 2012
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
Tuesday, December 4, 2012
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)
Tuesday, December 4, 2012
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
Tuesday, December 4, 2012
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.
Tuesday, December 4, 2012
8th Grade Science
Time Travel
Video: Star Size Comparison
Video: The true size of our world
Tuesday, December 4, 2012
8th Grade Science
Exit Ticket
Are light years a measurement of distance or time? How do you know?
Tuesday, December 11, 2012
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
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
8.8 B/D 8.8 B/D
HW due on Friday HW due on Friday
Wednesday & Thursday, December 12 & 13, 2012
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.
Wednesday & Thursday, December 12 & 13, 2012
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
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
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
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
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