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Astronomy Unit


Chemistry vs. Astronomy

8th Grade

Content Area & Topic: Chemistry and Astronomy

Lesson Overview: How were planets and stars discovered? When did chemistry evolve? Questions are always being asked about when something was discovered or how it works. Here the timeline can help to show the different eras of when breakthroughs were made in chemistry and astronomy. While looking at the timeline one might see how astronomy and chemistry were similar and different in each era.

Iowa Core Statements:

  • Understand and apply knowledge of the components of our solar system
  • Understand and apply knowledge of forms of energy and energy transfer

Content Objectives:

  • Recognize natural structures in the solar system
  • Explain the relationship between the sun and earth
  • Recognize that the sun is the major source of energy for phenomena on the earth's surface
  • Explain how season's occur
  • Summarize the importance of gravity and the role it plays in the universe
  • Explain how the motion of objects in the solar system are regular and predictable

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Flame Test

8th Grade

Content Area & Topic: Astronomy, Chemistry, and Physics

Lesson Overview: Ever wonder what makes the colors of the fireworks? When scientists get samples of soil from planets or satellites (moons) how can they see what metals are there? Different metals give off different colors of light. When a solution of a metal is used on a flame test, a color will be given off to tell which metal is in the solution.

Iowa Core Statements:

  • Understand and apply knowledge of the components of our solar system.
  • Understand and apply knowledge of forms of energy and energy transfer.

Content Objectives:

  • Recognize natural structures in the solar system.
  • Recognize that energy is associated with heat, light, electricity, mechanical motion, sound, nuclei, and the nature of a chemical.

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Star Composition Lab

8th Grade

Content Area & Topic: Astronomy and Physics

Lesson Overview: Ever wonder how a scientist knows what gases stars are composed of? The answer is using spectroscopes that give off a light line admission, which is the fingerprint of an element. This lab will let the students see the admission lines of several different gases.

Iowa Core Statements:

  • Understand and apply knowledge of the components of our solar system.
  • Understand and apply knowledge of forms of energy and energy transfer.

Content Objectives:

  • Recognize natural structures in the solar system.
  • Explain how the sun’s energy arrives as a range of wavelengths.

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