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Spectral Tube
Principles Illustrated:
Various gaseous elements emit different spectra of
light. These spectra are indicative of the types of
gasses present. Using a spectroscope and a spectral
tube, students can break down this light in order to
analyze its components. This method is similar to that
used by scientists to determine the types of gasses
that make up stars.
Standards Addressed:
8th grade Physical Science- CA standard
Earth in the Solar System (Earth Sciences)
4. The structure and composition of the universe can
be learned from studying stars and galaxies and their
evolution. As a basis for understanding this concept:
2. Students know that the Sun is one of many stars
in the Milky Way galaxy and that stars may differ in
size, temperature, and color.
4. Students know that stars are the source of
light for all bright objects in outer space and that
the Moon and planets shine by reflected sunlight, not
by their own light.
5. Students know the appearance, general
composition, relative position and size, and motion of
objects in the solar system, including planets,
planetary satellites, comets, and asteroids.