StarModel16MAR 

=Build a Star /72Pts=

Technology research points /XXPts
 * 1) Create a wiki page called StarModel codeinitials.
 * 2) Copy the information below and paste it on your StarModel page.
 * 3) Enter the first name only of your lab partners.
 * 4) View **Web Search Strategies video**
 * 5) Work as a group to research information about stars. Find at least 4 scientifically valid sources of information about stars. Enter the URL for each of the resources used under each appropriate question.
 * 6) Use EasyBib to create a Works Cited list in MLA format with annotation for each entry.

Due: September 29, 2015


 * Problem**: I would like you to work in groups of 4 and create a scale model of a star. Using technology to do some research about a star of your choosing and knowing what we know about scaling, you are going to build a model of the star with materials of your choosing. The materials you need to build this star are to be brought into class, and you will have 3-4 full class periods to assemble your star as a group. This will count as a summative assessment for Science for this unit. After the assembly of the stars you will need to show answer a few review questions on your own to receive full credit.

Lab Partners:

_ Jenna

_Paola

_Mia

_ Nick


 * Star you want to model**: You will need to show the layers, so have a cross-section in your model.

Materials we need: what group is bringing:

Nick- styrofoam ball Paola- paint Jenna- paint brushes Mia- paint containers

name of star: Bellatrix

Notes: https://en.wikipedia.org/wiki/Bellatrix
 * is the third brightest star in the constellation Orion

bellatrixs diameter: 8.4 Million KM 12 inch ball 700000= 1 inch

How are we going to scale this? What is our scale? Example 1 inch = 500 miles

We are going to scale this star

Make sure to include the question also./20 pts
 * Review Questions**: Please answer the following and place them on your wiki.

1. What type of nuclear reaction happens inside a star? What processes of creating a star make this possible? ___/4pts__

The type of nuclear reaction that happens inside a star is nuclear fusion. The process of making a star is gravity increasing pressure, which causes fusion Also when pressure goes up the temperature rises.

2. Which is hotter a red star or a blue star? Why? _/4 pts

The star that is hotter is a blue star, it is hotter beacuse the more gravity and pressure that collides meakes heat, and on a heat scale this is shown. There is more energy in a blue star, because it is hotter.

The hotter the more enerygy.

3. What are the 6 types of stars? /6 pts

1. Main Sequence 2. Red Giant 3.White Dwarf 4. Neutron 5.Black holes 6. Brown Dwarf

4. How did this project help you understand a star better? /4 pts

This project helped me understand stars better because now I know that stars are all differnent sizes and diameters. Also that all stars have different amounts of heat and pressure that causes it temperature.

5. Did everyone work together equally on this project? ___/2 pts Do not use any names in your answer on the wiki

Yes, my group worked very well together. We all worked equally on this project.

Write a description in your own words describing how one layer of a star works

The core is a layer in the middle of the sun. The core is the source of all energy for the sun. The sun is the most massive object in the whole solar system, so that means that its core is very large. The core is the hottest part of the star and its temperature and pressure are so hot that they ignite nuclear fusion within the star. The only objects in the core are hydrogen and helium. The core size of a star depnds on its mass. There are other stars that are smaller and larger than the sun. The bigger the star the hotter the core is. The core of the sun is very important because it gives off all the energy that is needed on Earth. The core is an essential part of all stars.

http://www.universetoday.com/24637/core-of-a-star/ http://www.ehow.com/about_5371274_suns-core.html http://solar.physics.montana.edu/ypop/Spotlight/SunInfo/Core.html


 * Works Cited List** (4 resources in MLA format with annotation for each indicating the validity of the information.)

"Bellatrix." //Wikipedia //. Wikimedia Foundation, n.d. Web. 30 Sept. 2015. .


 * This is a valid source because many educated people put on the information.

"Core of a Star." //Universe Today //. N.p., 04 Feb. 2009. Web. 30 Sept. 2015. .


 * This is a valid source because Universe Today is information and facts all about the universe today, and the information is put on by educated people.

Deziel, Chris. "Facts About the Sun's Core." //EHow //. Demand Media, n.d. Web. 30 Sept. 2015. .


 * This is a valid source because the facts about the sun are real correct facts.

Mr. Paczynski. "Layers of a Star." Lecture.
 * This is a valid source because he is my teacher, and he is very well educated.

"The Sun's Energy Source." //Core //. N.p., n.d. Web. 30 Sept. 2015. <http://solar.physics.montana.edu/ypop/Spotlight/SunInfo/Core.html>.


 * This is a valid source because the information is correct and well written.


 * Star Project Science Grade Rubric**

Total amount of points:


 * Project Participation** (comes from teacher observation and group response)
 * 0 || 1 || 2 || 3 || 4 ||
 * Offered no help with collaboration of the project || Offered very little to no help with project of collaboration || Offered help but was easily distracted and was not working some of the time || Fully participated, was either a leader or a worker || Fully participated, everyone took turns leading and working in group ||
 * Points ||  || Comments ||||   ||


 * Star is to scale**
 * 0 || 1 || 2 || 3 || 4 ||
 * Star is not to scale ||  ||   || Layers of star are to scale but no explanation of scale is given on display || Layers of star are to scale, with explanation of scale given on display ||
 * Points (x2) ||  || Comments ||||   ||


 * Review Questions**
 * 0-4 || 5-9 || 10-14 || 15-19 || 20 ||
 * 0-4 points awarded, see key || 5-9 points awarded, see key || 10-14 points awarded, see key || 15-19 points awarded, see key || All Questions are correct ||
 * Points ||  || Comments ||||   ||


 * Star parts description**


 * 0 || 1 || 2 || 3 || 4 ||
 * Left blank || Not on topic or no understanding of the star part || Shows basic understanding of the star part || Shows a full understanding of how it works, offers no explanation to why it is important for the star || Shows a full understanding of how the part works, explains why this function is important for stars ||
 * Points (x5) ||  || Comments ||