8 th Grade Science

1. 8th Grade Science Do Now Monday, December 10, 2012 Copy the table on page _138_

2. 8th Grade Science Today’s Schedule Monday, December 10, 2012 Do Now White Board Review Quiz Light year Essential Question Vocabulary How is current scientific data about components of the universe used to develop theories explaining the origins of the universe? Universe Light Year Nebulae Galaxies Herztsprung-Russel diagram Electromagnetic Spectrum

3. 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

4. 8th Grade Science BrainPop Video Monday, December 10, 2012 Star Cycle Video Black Holes Video

5. 8th Grade Science White Board Review Monday, December 10, 2012 1. Describe the relationship between surface temperature and brightness of stars in the main sequence?

6. 8th Grade Science White Board Review Monday, December 10, 2012 2. Using the HR Diagram, describe the temperature and magnitude (brightness) of Betelgeuse.

7. 8th Grade Science White Board Review Monday, December 10, 2012 3. Where do black holes come from? Astronomers have no idea. Astronomers think that massive stars exploded and created them. Astronomers think that stars like our Sun exploded and created them. There is no evidence that black holes are real.

8. 8th Grade Science White Board Review Monday, December 10, 2012 • 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? • The density increases. • The density decreases. • The density stays the same. • There is no way to keep the mass the same and change the volume.

9. 8th Grade Science White Board Review Monday, December 10, 2012 • 6. 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? • In the lower, right corner. • In the upper, right corner. • In the upper, left corner. • In the main sequence.

10. 8th Grade Science White Board Review Monday, December 10, 2012 • 7. In the HR diagram, massive stars tend to be either blue or white in color. What does this tell us about these stars? • These stars have low surface temperatures. • These stars are very dim stars. • These stars are not in the Main Sequence. • These stars have high surface temperatures.

11. 8th Grade Science White Board Review Monday, December 10, 2012 • 8. Ultraviolet, x-ray, visible, and microwave are all members of the… • Periodic Table. • Tools used by medical professionals. • Electromagnetic (EM) spectrum. • Elements of the sun.

12. 8th Grade Science White Board Review Monday, December 10, 2012 9. What group of stars does the Sun belong to?

13. 8th Grade Science White Board Review Monday, December 10, 2012 Spectral Data for Element A 10. Based on the Spectral Data for Element A, which of the following stars contains Element A? a) b) c) d)

14. 8th Grade Science QUIZ Monday, December 10, 2012 Read and re-read the passage. Underline the question Bubble important words Identify the key idea, write it in margin. Eliminate the wrong answers Select the correct answer ✓ predator/prey interactions

15. 8th Grade Science Light Year Monday, December 10, 2012 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.

16. 8th Grade Science Do Now Tuesday, December 11, 2012 1. Glue page onto 140. 2. On page _138_, answer the question below.

17. 8th Grade Science Today’s Schedule Tuesday, December 11, 2012 Do Now Time Travel Exit Ticket Essential Question Vocabulary How is current scientific data about components of the universe used to develop theories explaining the origins of the universe? Universe Light Year Nebulae Galaxies Herztsprung-Russel diagram Electromagnetic Spectrum

18. 8th Grade Science Today we will… Tuesday, December 11, 2012 8.8(D) model and describe how light years are used to measure distance and sizes in the universe

19. 8th Grade Science Time Travel Tuesday, December 4, 2012 Distances to stars and celestial objects are immense. 60 miles/hour 600 miles/hour 25,000 miles/hour. LIGHT 186,000 miles/second

20. 8th Grade Science Time Travel Tuesday, December 4, 2012 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)

21. 8th Grade Science Time Travel Tuesday, December 4, 2012 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 Distance in Light Years 1 cm 1 mm 1 m ꞊ x x x 1 light year 10 mm 100 cm 1

22. 8th Grade Science Time Travel Tuesday, December 4, 2012 • Measure from the Earth, the scaled distance. • Using a paperclip, attach the card to the string in the appropriate place. • Fill in your table about the other planets and galaxies.

23. 8th Grade Science Time Travel Tuesday, December 4, 2012 Video: Star Size Comparison Video: The true size of our world

24. 8th Grade Science Light Year Tuesday, December 11, 2012 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.

25. 8th Grade Science Exit Ticket Tuesday, December 11, 2012 Are light years a measurement of distance or time? How do you know?

26. 8th Grade Science Do Now Wednesday & Thursday, December 12 & 13, 2012 1. Tape reading to page 143. 2. On page _138_,.

27. 8th Grade Science Today’s Schedule Wednesday & Thursday, December 12 & 13, 2012 Do Now Milky Way Galaxy Notes Card Sort “Monster in the Middle” Essential Question Vocabulary How is current scientific data about components of the universe used to develop theories explaining the origins of the universe? Universe Light Year Nebulae Galaxies Herztsprung-Russel diagram Electromagnetic Spectrum

28. 8th Grade Science Today we will… Wednesday & Thursday, December 12 & 13, 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.

29. 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.

30. 8th Grade Science Milky Way Galaxy Wednesday & Thursday, December 12 & 13, 2012 • Our star is the sun and the planets in the Solar System revolve around the Sun.  

31. 8th Grade Science Milky Way Galaxy Wednesday & Thursday, December 12 & 13, 2012 • Our Solar System is part of the Milky Way galaxy

32. 8th Grade Science Milky Way Galaxy Wednesday & Thursday, December 12 & 13, 2012 • Astronomers believe there are hundreds of billions of galaxies in our universe but the exact number is not known. Andromeda Milky Way

33. 8th Grade Science Milky Way Galaxy Wednesday & Thursday, December 12 & 13, 2012 • There are about 10,000 galaxies visible from the image of Hubble Deep Field.   • There are approximately 100-300 million stars in the Milky Way Galaxy.   • At most 8,479 are visible from Earth.

34. 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. • Record on page 142 of your notebook.

35. 8th Grade Science Card Sort Wednesday & Thursday, December 12 & 13, 2012 Spiral Elliptical Irregular

36. 8th Grade Science Video Wednesday & Thursday, December 12 & 13, 2012 Monster in the Middle

37. 8th Grade Science Do Now Friday, December 14, 2012 • Glue the reading page 147. • Copy the table below on page 146.

38. 8th Grade Science Today’s Schedule Friday, December 14, 2012 Do Now Big Bang Lab and Reading Finish “Monster in the Middle” Essential Question Vocabulary How is current scientific data about components of the universe used to develop theories explaining the origins of the universe? Universe Light Year Nebulae Galaxies Herztsprung-Russel diagram Electromagnetic Spectrum

39. 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

40. 8th Grade Science Big Bang Lab Friday, December 14, 2012 • Collect materials: string, ruler, balloon, marker. • Partially inflate a balloon. DO NOT TIE A KNOT! • Use a Visa-Via marker to mark 5 stars labeled A, B, C, D, and E. • Use a string and a ruler to measure from A to the 4 other stars in centimeters. • Record your measurements. • Add more air to the balloon to make it medium sized. • Repeat step 4. • Fill up the balloon and tie it. • Repeat step 4. • Put materials away.

41. 8th Grade Science Convert to light years. Friday, December 14, 2012 1. Change centimeters to light years. 0.5 cm= 1 light year. cm x 2. Record in your table 1 light year ═ 0.5 cm

42. 8th Grade Science Big Bang Analysis Friday, December 14, 2012 • Read “The Big Bang Theory” • Copy and answer the following questions: • What evidence supports the big bang theory? • How can the light of distant stars and galaxies be used to measure distances in space? • Imagine that Location A on the balloon is the Milky Way and the other locations are distant galaxies outside the Local Group. How would you describe the motion of the other galaxies?