Saturday, April 17, 2010

Life of a star

Curriculum Concept: Describe the characteristics of stars: luminosity, temperature, color, and absolute brightness of stars. Identify the different sizes of stars and the life cycle pattern

Grade level: 9th grade physical science; astronomy unit

Tools needed:

Computers for students

Worksheets

Access to internet

Web Resources:

· Life cycle of a star

· Hertzsprung Russell diagram worksheet

Interactive HR diagram

Hertzsprung-Russell diagram

Strategy: A quick look at the Hertzsprung-Russell diagram shows students that there are stars have different sizes, colors, temperatures, and brightnesses. The Interactive HR diagram leads the students an through the various scales used on the diagram and offers an opportunity to relate the scales to one another. The Hertzsprung Russell diagram worksheet allows the students to apply their learning and draw conclusions based on this learning. Finally, the Life cycle of a star explores the typical life stages of stars of different sizes.

Prior knowledge: Students have studied galaxies and galaxy types. The next level is the study of the

stars within the galaxies.

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