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Exploring Stars: Elements and Life Cycle

This assignment explores the elements present in stars and their life cycle. Students will use pages RM 19-20 to determine the elements in each star and answer conclusion questions on page 28. Additionally, students will learn about star classification, HR diagrams, and complete a lab activity and card sort.

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Exploring Stars: Elements and Life Cycle

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  1. DO NOW V: 0

  2. Homework & Agenda V: 0

  3. TEKS V: 0

  4. Vocabulary V: 0 • Electromagnetic Spectrum • Frequency • Waves

  5. EQs & Objectives V: 0

  6. Fingerprinting V: 2 • Using Pages RM 19-20, determine the elements in each star. • **Teacher will model how to do this** • 2. For each star, put an “X” next to the element name for each element it has on RM 21.

  7. Conclusion Questions V: 0 Copy and answer the following on page 28 of your INB… • What elements are found in all five stars? • Why do you think these elements are found in all five stars? Think about their atomic structure and placement on the Periodic Table. • Do any of the stars contain all eight of the given elements? • Which of the stars do you think is the oldest?

  8. DO NOW V: 0

  9. Homework & Agenda V: 0

  10. TEKS V: 0

  11. EQs & Objectives V: 0

  12. Vocabulary V: 0 • HR Diagram • White Dwarf • Red Giant • Red Supergiant • Main Sequence Star • Magnitude • Brightness • Temperature

  13. Life Cycle of a Star V: 0 BrainPop: Life Cycle of Star

  14. HR Diagram V: 0 • Get out the large HR Diagram • Each person at your table should have number of stars. • Place the stars on the diagram. • Copy the diagram onto page 27 of your notebook.

  15. Reading V: 0 • Complete the Reading “The Hertzsprung-Russell” Diagram • Complete RM 23

  16. Exit Ticket V: 0 On your sticky note answer… How are stars classified? Stars are classified by…..

  17. DO NOW V: 0

  18. Homework & Agenda V: 0

  19. TEKS V: 0

  20. EQs & Objectives V: 0

  21. Vocabulary V: 0 • HR Diagram • White Dwarf • Red Giant • Red Supergiant • Main Sequence Star • Magnitude • Brightness • Temperature

  22. Life Cycle of a Star Lab V: 0 Record observations and data on the handout. • Inflate a balloon to about 45cm in circumference. • Cover the balloon in aluminum foil and measure the circumference of the “star”. • Measure the mass of the “star”. • Pop the balloon and gently crush the foil (NOT ALL THE WAY) to represent a supernova. • Measure the new circumference and mass. • Crush the foil a second time, measure the mass and volume. • Crush the foil a final time to represent a black hole.

  23. Life Cycle of Star Card Sort V: 1 • Complete the card sort with your shoulder partner • Raise your hand so your teacher can check it. • Copy on page of your INB.

  24. DO NOW V: 0

  25. Homework & Agenda V: 0

  26. TEKS V: 0

  27. EQs & Objectives V: 0

  28. Vocabulary V: 0 • Electromagnetic Waves • Spectroscope • HR Diagram • White Dwarf • Red Giant • Red Supergiant • Main Sequence Star • Magnitude • Brightness • Temperature

  29. QUIZ V: 0 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 ✓ Mass of an object

  30. After the QUIZ V: 0 On a piece of lined paper, answer the following questions. Use complete sentences. You must write at least half a page. • Describe what a star is. • How do scientists classify stars and what is the name of the diagram where stars are classified? • How does our star, the Sun, compare to other stars in our galaxy. • Describe the Sun’s brightness, temperature, and size.

  31. Homework Review V: 0 • Review this week’s homework

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