STEM Deep Space Discovery Tools: Spectroscope Light Diffraction Facilitator: Kay Borglum, MS

STEM: Spectroscope Light Diffraction July 4, 2011~ The NASA/ESA Hubble Space Telescope made its millionth observation since its launch 21 years ago Hubble was searching for chemical indicators of water on an exoplanet gas giant larger than Jupiter.. Famous for incredible images. Credit for the millionth observation goes to Hubble’s SPECTROGRAPH Spectroscopy is the technique of splitting light into its component colors The gases present in a planet’s atmosphere leave a fingerprint in the form of the distinctive color patterns that different gases absorb. Analyzing this data can give precise measurements of which elements are present in an object too distant to ever be visited by a space probe.~NASA

STEM: Spectroscope Light Diffraction Question: If a spectrograph is useful to determine chemical composition of radiating light sources in deep space, can we see changes in spectrum patterns here? Problem Statement: What everyday light sources have the same spectral pattern?

STEM: Spectroscope Light Diffraction Problem Statement: What everyday light sources have the same spectral pattern? Grading: Lab Rubric Handout Next Generation Sunshine State Standards Science: SC.8.E.5.10: Assess how technology is essential to science for such purposes as access to outer space and other remote locations, sample collection, measurement, data collection and storage, computation, and communication of information. SC.8.E.5.11: Identify and compare characteristics of the electromagnetic spectrum such as wavelength, frequency, use, and hazards and recognize its application to an understanding of planetary images and satellite photographs. SC.912.E.5.8: Connect the concepts of radiation and the electromagnetic spectrum to the use of historical and newly-developed observational tools.

STEM: Spectroscope Light Diffraction Math: MA.912.G.8.2: Use a variety of problem-solving strategies, such as drawing a diagram, Hubble Math Lessons c/archives/education/pdf/hst1 5_edu_1.pdf c/archives/education/pdf/hst1 5_edu_1.pdf Geometry Recognize and apply geometric ideas and relationships in areas outside the mathematics classroom, such as art, science, and everyday life Lightpaintings.com

STEM: Spectroscope Light Diffraction Science Literacy Café Hubble Telescope Press Release English: LA : The student will use knowledge of the pronunciation of root words and other morphemes to decode words

Problem Statement: What everyday light sources have the same spectral pattern? Constructing Your Spectroscope Handout "Simple Spectroscope“ Three parts Tube Light Enters Slot Diffraction Grating

Constructing Your Spectroscope Handout "Simple Spectroscope“ Tube Light Slot Enters Diffraction Grading

Discovery Light Spectrum Experience Problem Statement: What everyday light sources have the same spectral pattern? DIAGRAM: Picture + Label Color markers 3x5 card Light SourceColor Diagram Spectrum Compact Fluorescent LED Incandescent Candle Flashlight Cell Phone Projector Light

Problem Statement: What everyday light sources have the same spectral pattern? Collaborate and Report 1. Table Team Report: – compare and contrast – share data 2. How could we organize the light sources that are the same? 3. Report what light sources you would add to this experience

Hubble Telescope Spectrograph Simple Spectroscope Analyzing this data can give precise measurements of which elements are present in an object too distant to ever be visited by a space probe.~NASA Analyzing your data can show color patterns emitted by various light sources STEM: Spectroscope Light Diffraction

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