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Once a medium size star (such as our Sun) has reached the red giant phase, its outer layers continue to expand, the core contracts inward, and helium atoms in the core fuse together to form carbon.
The Stars lesson plan includes three worksheets: an activity worksheet, a practice worksheet, and a homework assignment. Each one will help students solidify their grasp of the material they learned throughout the lesson.
★ Astronomers have been able to understand a great deal about stars, including how to determine its color, size, distance from earth, temperature, and much more. Star Characteristics ★ Most stars are between 1 billion and 10 billion years old. ★ Stars are composed of 71% hydrogen and 27% helium. The
Properties of Stars. _________________________ Key Question. What makes a star a star? My First Answer. Explain what you know or think you know about the answer to the Key Question before reading any of the I.Files. ________________________________________________________________________________________ My Key Words and Definitions.
Mantle: The layer beneath the Earth's crust is composed of hot, semi-solid rock that flows slowly. Outer Core: A liquid layer of molten iron and nickel is be- neath the Earth's mantle, and is responsible for generating the planet's magnetic field.
Question Sheet. Just like living things and humans, stars have a life cycle, which consists of birth, growth, development, middle age, old age, and death. The life cycle of a star spans over billions of years. Section One - Sequencing. The stages below are not in the right order. Number the stages in the correct order.
Overview: Stars can be classified by using the general shape and specific lines of their spectra. Objectives: The student will: perform a simple analysis of spectral lines to classify 15 spectral models into four classes; and. compare three plots of unknown stars to the Jacoby-Hunter-Christian Atlas to find the closest classification match.
