For embedded comments, checks for understanding cfus, and key additional information on transitions and key parts of the lesson not necessarily included in the below narrative, please go to the comments in the following document. In this course you will be studying the different processes, relationships, mechanisms, and concepts that help us interpret our planet earth. Describe the relationship between a stars mass, its age, and its position on the hertzsprungrussell diagram. There are many forks in the road in the life of a star. Students will be able to demonstrate and predict the sequence of events in the life cycle of a star. Note where this web site is missing images and locate some and put in your description, along with the web address. Star evolution in this lesson students will investigate the evolution of. Activity instructions north carolina science festival. Students in grades 912 analyze characteristics that indicate human life cycles, and then apply these observational principles to various nasa pictures of stars to synthesize patterns of stellar life cycles. A stellar life students are guided through the stages of a stars life. Patterns of crustal activity due thursday 115 subduction zones ppt notes sandwichplatedonow qs plate boundary diagrams. Khodachenko1 and helmut lammer space research institute, austrian academy of sciences, schmiedlstrasse 6, a8042 graz. Stellar activity is a key factor of space weather and a valuable information channel on.
Students will be able to explain that there are different kinds of stars that we. Within this activity, students will make a visual representation of the life cycle of a massive star by associating different colored pony beads to different stages of stellar life. Life cycle of a star lab save yourself a ton of time and allow students to use this station lab to explore the life cycle of a star. Abstract in this thesis we study several aspects of dynamical evolution of stellar clusters. Lesson plan, worksheet, virtual manipulative, project. The stellar furnace causes the remaining protons h to slam into each other. As stars progress through life, their size, luminosity and radial temperature change according to predictable natural processes. Describe the relationship between a stars mass and its life span. Stellar life cycle stages stellar nebula a stellar nebula is the birthplace of stars.
The life cycle of a star a gas cloud, if big enough, starts to shrink. Read all of the information on each page and read information within the animation link or interactive labs. An information and activity booklet grades 912 19971998 imagine the universe. Now called inqua, a ball within a ball, or womb of vapour. It also explains how many objects and concepts are related, and how some astronomical events cause others. A star forms when a dense cloud of gas collapses until nuclear reactions begin deep in the interior of the cloud and provide enough energy to halt the collapse. The star circles and the lesson i created from the materials kept students active and engaged for an entire block. In the stellar life cycle, a main sequence star is equivalent to an adult human, therefore, as. Review that webb will help us study the life cycle of stars see resource below. Depending on the mass of the star, this lifetime ranges from only a few million years for the most massive to trillions of years for the least massive, which is considerably longer than the age of the universe. State that the class will do an activity that illustrates how all of these differences are related. Read and learn for free about the following article.
Download lives of stars activity including the handout pdf, 1. Star formation stellar evolution or life cycle of a star. Free recording sheet for the life cycle of a snowman created by lauren lynes at teacherspayteachers heres a terrific activity on changing states of matter called the life cycle of a snowman. Investigating the stellar systems lifetime and the.
Life cycle of stars handout govdocslifecycleshandout. Stellar life cycle until the last half of the nineteenth century, astronomy was principally concerned with the accurate description of the movements of planets and stars. This activity is an opportunity for students to apply their knowledge and understanding of the gas law, conservation of energy, and forces to stellar evolution. Gravity, as it always does, tries to pull the materials together. Your first task is to figure out and record the correct sequence of pictures from birth formation to stellar death. Stellar evolution lab the life cycle of a star worksheet. If our cosmic connection activity is used as a performance task, postassessment or as a presentation, then a scoring rubric is an appropriate assessment of student performance. Stellar evolution is a major standard in the california state science standards. Stellar evolution is the process by which a star undergoes a sequence of radical changes during its lifetime.
Classify pictures of big stars from birth formation to stellar death and write a detailed description of how you determined this sequence. Identify the stage of stellar evolution of several images. Stars evolve over billions of years, but new stars are constantly being born, so there are always stars of all ages. Lives of stars activity and handout night sky network. Star in a box allows you to explore one of the most enigmatic tools in astronomy the hertzsprungrussell diagram when you first open the box you start with a star with the same mass as the sun but you can change this to a different mass at any time. Place the images in sequence on a hertzsprungrussell diagram. Shortperiod stellar activity cycles with kepler photometry. If youre behind a web filter, please make sure that the domains. A few grains of dust collect a few more, then a few more, then more still. The burning of hydrogen stops the gas cloud from shrinking. Refer to the table below for a summary of the stages of the life cycle of stars stellar evolution and for what actions your visitors will take. Take a closer look at the life cycles of stars and learn where stars come from, how theyve changed, and what happens to stars when their lives come to an end.
Shortperiod stellar activity cycles with kepler photometry oleksiy v. Stars spend 90% of their lifetime on the main sequence, but in the last 10% of their lives, their life tracks take them to other parts of the hertzsprungrussell diagram. This little science activity teaches the states of matter while incorporating snowmen. State that stars above a certain mass end their lives in a supernova.
Begin by asking students if all stars are the same. Developments in electromagnetic theories of light along with the articulation of quantum and relativity theories at the start of the twentieth century, however, allowed astronomers to probe the inner workings of the stars. I have found that students of all levels have a difficult time fully comprehending the idea that a stars life cycle is determine by how much nebula dust and gas it starts with. This lab will allow you to gain experience with measuring stellar spectral lines to identify the elements that are being created in stars. Sun full of life nuclear fusion at the core at full swing. Star life cycle web activity millersburg area school. Video using computer simulation to explain life cycle of a star. A stars life is long compared to that of a human, but we can see the stages of stellar birth, aging, and death in the heavens. Overview of stellar evolution in general, the story of stellar evolution is the ongoing struggle of stars to generate internal energy in order to resist collapsing under their own selfgravity. Students perform as members of an interview with our sun at the end of its starlife, in the white dwarf stage. Outlined below are the many steps involved in a stars evolution, from its formation in a nebula, to its death as a white dwarf or a neutron star. The main activity consists of modeling atoms through alpha fusion processes, which provides a uniquely tangible understanding for the students.
Stars are formed in clouds of gas and dust, known as nebulae. This is the next age of the suns vortex, 34 way in its stellar life cycle. These giant gas clouds in space are mostly hydrogen gas. Very large, massive stars burn their fuel much faster than smaller stars and may only last a few hundred thousand years. Nuclear reactions at the centre or core of stars provides enough energy to make them shine brightly for many years. The milky way galaxy contains several hundred billion stars of various ages, sizes and masses. Go to the interactive lab end of their life cycles 23. The table shows the lifetimes of stars as a function of their masses. Similar to cycles on earth the rock cycle and the water cycle stellar evolution is also a cycle a continuous cycle of change on a cosmic scale. They follow a pattern similar to many of the life cycles we see here on earth. Prior to igniting fusion and becoming a main sequence star, a contracting protostar will reach hydrostatic equilibrium at around 3,500 c. Eventually, enough gas and dust has been collected into a giant ball. Please click on the document you would like to download.
In these handson and starry night computer exercises, your students will explore the nature of stars. Make a list of things that might vary between stars. Students should understand what a star is in broad terms before starting this activity. The graph they make is so large that they have to be up and moving around to put all of their stars on the hr diagram.
Depending on the mass of the star, its lifetime can range from a few million years for the most massive to trillions of years for the least massive, which is considerably longer than the age of the universe. This complete lesson plan is ready to print and teach. Name the major stages of a stars life cycle, in order, for several masses of star. Answer the following questions based on information contained on the website. Stellar life cycles university of california, berkeley. By the end of the lab they will be able to describe where stars come from, how they are created, what determines the path they take, and draw the life cycle diagram. An interactive and engaging solution to the hertzsprung. Spectral lines generally occur when there is an interaction between an atom and a photon. Ice cube activity matter science, elementary science. Many of the stellar types identified are really similar stars at different points in their evolution. A star remains on the main sequence as long as it can fuse hydrogen into helium in its core. Discover the life cycle of stars and when supernovae happen with this activity and. The life of a star if youre seeing this message, it means were having trouble loading external resources on our website. The density and temperature increase so nuclear fusion can start.
Work in your table groups to answer the questions using your netbooks. Introduction to stellar evolution, their source of energy and the life cycle of stars. Kinesthetic life cycle of stars fairmont state university. Life cycle of stars information chart at the end of this lesson. Scc gk12 lesson plan stellar nucleosynthesis and the. The material is presented in the context of stars, as all chemical elements are formed in stars and supernova explosions. Star birth and life imagine an enormous cloud of gas and dust many lightyears across. Aug 22, 2015 the hertzsprungrussell diagram lessons. Results from the beginning of the star life cycle activity. Once enough gas has been collected, the gravitational force becomes so strong that hydrogen atoms fuse into helium through nuclear. Stellar life cycle internet activity answers do not write on this sheet instructions. Sep 12, 2019 outlined below are the many steps involved in a stars evolution, from its formation in a nebula, to its death as a white dwarf or a neutron star. Thomas swan is a published physicist who received his ph.
Spectral lines are atom specific as to the pattern produced on the spectrum. Basics of star formation and stellar nucleosynthesis. Investigating the stellar systems lifetime and the evolution of their mass function using nbody simulation masters thesis zeinab khorrami supervisor. They range in size, color, temperature, power, and life spans. I can use it to answer a number of specific questions. This activity will explore the processes that affect a stars structure and. Then discuss that a star also goes through a life cycle. Activity page two unsequenced large star cycle page shows eight nasa images from the hubble space telescope. This is one activity from the life cycle of a star station lab.
This lesson may be used as part of an earth science or introductory chemistry class. This is the round or spherical age of the suns vortex, the last or end of the suns stellar life planetary nebula. If youre seeing this message, it means were having trouble loading external resources on our website. Chapter 4 multiwavelength galaxy cards lab activity astronomy. Earth science, is related to the field of science called earth science. These are pictures of the formation sequence of really big stars. Lesson plan g2 the stars introduction we see the stars as tiny points of light in the sky. Stellar evolution is the process by which a star changes over the course of time. This section will describe those changes, focusing on the life cycle of the sun. Stellar life cycle stellar evolution is the process by which a star undergoes a sequence of radical changes during its lifetime. The mass of a star determines a great deal about its temperature and life span. You are to take a stellar remnant topic listed in chapter 15 and use the learning objectives related to work up a project that explains the topic. The exact lifetime of a star depends very much on its size.
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