# ALEX Lesson Plan

## Hands-on Activity: Can You Locate the Sun on the H-R Diagram?

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This lesson provided by:
 Author: Kimberly Simms System: Lowndes County School: Calhoun High School The event this resource created for: ASTA
General Lesson Information
 Lesson Plan ID: 34474 Title: Hands-on Activity: Can You Locate the Sun on the H-R Diagram? Overview/Annotation: Students will be able to locate the sun by using the Hertzsprung-Russel diagram to plot the sun's location.  This lesson can be an opening activity, review activity, or a quick lab.This lesson results from a collaboration between the Alabama State Department of Education and ASTA.
Associated Standards and Objectives
Content Standard(s):
 Science SC2015 (2015) Grade: 9-12 Earth and Space Science 3 ) Evaluate and communicate scientific information (e.g., Hertzsprung-Russell diagram) in reference to the life cycle of stars using data of both atomic emission and absorption spectra of stars to make inferences about the presence of certain elements. NAEP Framework NAEP Statement:: E12.2: Early in the history of the universe, matter (primarily the light atoms hydrogen and helium) clumped together by gravitational attraction to form countless trillions of stars and billions of galaxies. Unpacked Content Scientific And Engineering Practices:Obtaining, Evaluating, and Communicating InformationCrosscutting Concepts: Scale, Proportion, and QuantityDisciplinary Core Idea: Earth's Place in the UniverseEvidence Of Student Attainment:Students: Compare and contrast stars according to color-spectral types based on temperature and luminosity. Make inferences of stellar mass, size and final state through analysis of Hertzsprung-Russell diagrams. Explain why medium and small stars will not produce black holes. Explain how large mass stars produce the heavy elements of the periodic table. Differentiate among stars by mass to predict life span, elements produced, sequence of stages, and final state.Teacher Vocabulary:Hertzsprung-Russell Diagram temperature luminosity planetary nebula main sequence red giant white dwarf neutron star black hole event horizon blackbody curve Stefan-Boltzmann Law Wien's Law emission spectrum absorption spectrum continuous spectrum classification nuclear fusion Balmer series for HydrogenKnowledge:Students know: The study of the stars' light spectra and brightness is used to identify compositional elements of stars, their movements, and their distances from Earth. Nuclear fusion within stars produces all atomic nuclei lighter than and including iron, and the process releases electromagnetic energy (other than hydrogen and helium). Heavier elements are produced when certain massive stars achieve a supernova stage and explode.Skills:Students are able to: Communicate scientific information (using oral, graphical, textual, or mathematical formats) and cite origin as appropriate.Understanding:Students understand that: In nuclear processes, atoms are not conserved, but the total number of protons plus neutrons is conserved.AMSTI Resources:This would be best following E&SS standard 1 and before E&SS standard 2.

Local/National Standards:

Primary Learning Objective(s):

Students will use the Hertzsprung-Russel Diagram to plot the position of the sun.