TEK 8.8
Earth and space. The student knows characteristics of the universe. The student is expected to:
(A) describe components of the universe, including stars, nebulae, and galaxies, and use models such as the Herztsprung-Russell diagram for classification;
(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;
(C) explore how different wavelengths of the electromagnetic spectrum such as light and radio waves are used to gain information about distances and properties of components in the universe;
(D) model and describe how light years are used to measure distances and sizes in the universe; and
(E) research how scientific data are used as evidence to develop scientific theories to describe the origin of the universe.
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