Today we began work on our geologic time brochure or poster project.
- We chose time periods to research
- Discussed the various eons, eras, and periods that exist in Earth's history
- Began researching our time periods.
Due Dates
A2: Tuesday, December 2
B6: Wednesday, December 3
Homework:
Read Lucky Strike Article and answer questions on reading review
This is the homework and happenings page for Owatonna Junior High School's 8th grade Earth Science class with Mrs Koessler. Here you will find agendas, assignments, extra credit opportunities, and tutorials for subjects covered in this class.
Looking for OJHS Life Science?
Find information about 7th grade Life Science with Mrs. Koessler by following this link
Find information about 7th grade Life Science with Mrs. Koessler by following this link
Thursday, November 27, 2008
Wednesday, November 19, 2008
Radioactive Decay
Today in class we discussed:
- Radioactive elements
- Use of radioactive elements in determining the absolute age of rocks
- What is a half-life?
- The role of Potassium 40 and Carbon 14 in dating rocks and fossils.
Worked on Radiometric Dating Activity
Homework due Wednesday/Thursday
Finish lab and study for quiz on geologic time
Sunday, November 16, 2008
B6:Stratigraphy
Monday, November 03, 2008
A2: Relative and Absolute Time
Do Now:
Define relative and absolute time. Give an example of each
Today in class we:
Discussed the difference between relative and absolute time
Discussed how sedimentary rocks, igneous rocks, and faults can tell us about events in Earth's history
Worked on "This is your life" Sequencing Activity
Homework due Thursday:
Read Section 2 pg 117-121, answer questions 1-3 on pg 121
Finish Sequencing activity worksheet
Define relative and absolute time. Give an example of each
Today in class we:
Discussed the difference between relative and absolute time
Discussed how sedimentary rocks, igneous rocks, and faults can tell us about events in Earth's history
Worked on "This is your life" Sequencing Activity
Homework due Thursday:
Read Section 2 pg 117-121, answer questions 1-3 on pg 121
Finish Sequencing activity worksheet
Wednesday, October 29, 2008
Rock Unit Review
B6: Today in class we reviewed for Rock Unit Test (see sidebar for copy of review sheet)
- Completed rock cycle lab (if not handed in today, due Friday)
- Worked on rock identification lab
Due Friday:
Study for Rock Unit Test - Study session on Friday morning @ 7:20 in Rm 411
- Completed rock cycle lab (if not handed in today, due Friday)
- Worked on rock identification lab
Due Friday:
Study for Rock Unit Test - Study session on Friday morning @ 7:20 in Rm 411
Friday, October 17, 2008
Rock Cycle
Do Now: Do rocks change over time? What influences if and when rocks change?
Today in class we:
- Reviewed igneous, sedimentary, and metamorphic rocks
- Discussed the rock cycle and introduced some new vocabulary:
- Worked on rock cycle worksheet
Homework due Monday:
Questions 1-7 on rock cycle worksheet
Today in class we:
- Reviewed igneous, sedimentary, and metamorphic rocks
- Discussed the rock cycle and introduced some new vocabulary:
- Crystallization
- Weathering
- Erosion
- Contact and Regional Metamorphism
- Uplift
- Worked on rock cycle worksheet
Homework due Monday:
Questions 1-7 on rock cycle worksheet
Thursday, October 09, 2008
Review Quiz / Metamorphic Rocks
Today in class we:
Reviewed the concepts covered in the quiz: igneous and sedimentary rocks
Began discussion of metamorphic rocks
Reviewed the concepts covered in the quiz: igneous and sedimentary rocks
Began discussion of metamorphic rocks
Friday, September 26, 2008
Sedimentary Rocks
Do Now:
Do rocks change over time?
What causes rocks to change?
Today in class we:
Discussed classification of sedimentary rocks
Homework:
Read section 5.3 and answer review questions
Do rocks change over time?
What causes rocks to change?
Today in class we:
Discussed classification of sedimentary rocks
- Clastic, Organic, Chemical
- Coarse, Medium, Fine grained
Homework:
Read section 5.3 and answer review questions
Thursday, September 25, 2008
Igneous Rocks
Do Now:
What are the three ways in which rocks are classified?
Where are felsic rocks formed?
Where are mafic rocks formed?
What is the difference in environment between where coarse grained and fine grained rocks form?
Today in class we:
Discussed types of igneous rocks: Granite, Gabbro, Rhyolite, Basalt, Pumice, and Obsidian
Worked on Rocks of Earth's Crust worksheet
Homework:
Read Chapter 5 Section 2, complete section 2 assessment as well as Math Analysis
What are the three ways in which rocks are classified?
Where are felsic rocks formed?
Where are mafic rocks formed?
What is the difference in environment between where coarse grained and fine grained rocks form?
Today in class we:
Discussed types of igneous rocks: Granite, Gabbro, Rhyolite, Basalt, Pumice, and Obsidian
Worked on Rocks of Earth's Crust worksheet
Homework:
Read Chapter 5 Section 2, complete section 2 assessment as well as Math Analysis
Tuesday, September 23, 2008
Rock Unit
Do Now:
How are rocks and minerals related? Make a list of all rocks you know
Today in class we:
Discussed classification of rocks, classes of rocks: Igneous, Metamorphic, Sedimentary
Discussed Igneous Rocks: Intrusive vs. Extrusive, Felsic vs. Mafic, Fine grained vs. Coarse grained
Homework:
Read Chapter 5, Section 1 Answer questions 1 and 2 of Section 1 Review
How are rocks and minerals related? Make a list of all rocks you know
Today in class we:
Discussed classification of rocks, classes of rocks: Igneous, Metamorphic, Sedimentary
Discussed Igneous Rocks: Intrusive vs. Extrusive, Felsic vs. Mafic, Fine grained vs. Coarse grained
Homework:
Read Chapter 5, Section 1 Answer questions 1 and 2 of Section 1 Review
Friday, September 19, 2008
Diamond Deception
Today in class we watched the NOVA production Diamond Deception
Homework: due Monday/Tuesday
Students are to write a movie reflection that address the following aspects of the movie
- Typed 1.5-2 pages in length
- Summarize the science presented in the movie
- Summarize the social and environmental impacts presented in the movie
- Address your thoughts and opinions of the issues presented in the movie
Monday, September 15, 2008
Mineral Identification Lab
Wednesday, September 10, 2008
Introduction to Minerals
Do Now:
Describe two reasons why color is not a good indicator of a mineral's identify? Name two other tests that might help you identify a mineral
Today in class we discussed:
- Hardness of minerals
- Moh's scale of hardness
- Cleavage and Fracture
Homework:
Study the chemistry of minerals and intro to minerals notesheets in preparation for next class quiz
Describe two reasons why color is not a good indicator of a mineral's identify? Name two other tests that might help you identify a mineral
Today in class we discussed:
- Hardness of minerals
- Moh's scale of hardness
- Cleavage and Fracture
Homework:
Study the chemistry of minerals and intro to minerals notesheets in preparation for next class quiz
Thursday, September 04, 2008
Introduction to Minerals
Do Now:
Limonite has the chemical formula Fe2O3H2O, what elements compose this minerals and how many of each type are there?
Today in class we discussed:
- Five common properties that all minerals share
- Three tests that help us identify minerals: color, luster, and streak
Homework:
Read Chapter 4, Section 1 and complete the review at the end of the section
Tuesday, September 02, 2008
Chemistry of Minerals
Do Now:
List minerals that you know
Today in class we began our discussion of minerals by:
- Discussing the atomic structure of elements
- Identifying elements on the periodic table
- Working on Mineral Madness worksheet
Homework:
Complete any unfinished work on Mineral Madness worksheet
List minerals that you know
Today in class we began our discussion of minerals by:
- Discussing the atomic structure of elements
- Identifying elements on the periodic table
- Working on Mineral Madness worksheet
Homework:
Complete any unfinished work on Mineral Madness worksheet
Friday, August 29, 2008
Wednesday, August 27, 2008
Thursday, August 21, 2008
Quiz Day
Today in class we took our Chapter 1 quiz on landforms, topographic map and compass use, and world maps.
Homework: Think about doing a science fair project! Although it is optional, it can boost your semester test grade by up to 50%! Bring three science fair ideas to class on Monday when Ms. Virkus returns.
Homework: Think about doing a science fair project! Although it is optional, it can boost your semester test grade by up to 50%! Bring three science fair ideas to class on Monday when Ms. Virkus returns.
Tuesday, August 19, 2008
Quiz Review
Today in class the students reviewed for the upcoming Chapter 1 quiz. We went over the relevant material covered in Sections 1-1, 1-2, and 1-4 of the textbook, and practiced our topographic map and compass skills. The material on the quiz is from the following three areas:
Maps and Landforms
Models of Earth and Geographic Location
Using Topographic Maps
Homework: Study for the quiz!
Maps and Landforms
Models of Earth and Geographic Location
Using Topographic Maps
Homework: Study for the quiz!
Thursday, August 14, 2008
Map and Compass Exercises
Today in class the students learned the different parts of a Brunton compass, and how to use one to take and follow bearings. We also used our compasses and maps together to plan a route of travel. At the end of class the students contoured a given landscape. Note: B6 students will do this map and compass exercise on Monday because of the Admission Day holiday.
Homework (A2 class only): Review Chapter 1 and come to class with questions for the review session. B6 class should hand in their self-made topographic map exercises on Monday.
Homework (A2 class only): Review Chapter 1 and come to class with questions for the review session. B6 class should hand in their self-made topographic map exercises on Monday.
Friday, August 08, 2008
All about topographic maps
Today in class we learned that topographic maps show features on the earth's surface. We then proceeded to examine the Hilo Quadrangle in great detail, and learn all the information that can be found on a topographic map.
Homework: Construct your own topographic map using the instructions and map you were given in class. Due 8/12 for the A2 class, 8/18 for the B6 class.
Homework: Construct your own topographic map using the instructions and map you were given in class. Due 8/12 for the A2 class, 8/18 for the B6 class.
Wednesday, August 06, 2008
Globes and Maps, Latitude and Longitude
Today in class we discussed similarities and differences between maps and globes. We also learned all about lines of latitude and longitude, and how we use them to find locations on the earth. By the end of class, the students were able to find places on earth if given the proper coordinates, and also write the coordinates of a variety of locations chosen at random.
Homework: Read section 1-4 in your textbooks, and be ready to work with topographic maps for next class.
Homework: Read section 1-4 in your textbooks, and be ready to work with topographic maps for next class.
Monday, August 04, 2008
Landforms
Today in class we discussed terms like topography, elevation, and relief. We also went over the main types of landforms (mountains, plains and plateaus), where they are typically found in the United States, and looked at slides of landforms in Hawaii and all over the world. We finished up class with some review of the metric system.
Homework: Read section 1-2 in your text, and be ready to discuss the section assessment questions for Wednesday. Complete the Metric Mania handout if you haven't already.
Homework: Read section 1-2 in your text, and be ready to discuss the section assessment questions for Wednesday. Complete the Metric Mania handout if you haven't already.
Thursday, July 31, 2008
Syllabus, Class Letter, Cover Books
Aloha students and parents, and welcome to 8th Grade Earth Science! Today in class we all got to know each other and reviewed the syllabus and class rules. We also gave out textbooks, reviewed the basics of the Scientific Method, and began learning how to read a topographic map of the Big Island.
Homework: Over the weekend, parents and students should both read and sign the letter that was distributed in class today. Also, check the syllabus and make sure that you have all the binder and divider materials required for this class. In addition, you need to put a cover on your book over the weekend. This is your first homework grade and should be an easy way to earn a few points! Finally, remember to read Section 1 of Chapter 1 in your textbooks and be ready to discuss the "section assessment" at the end of the section on Monday (or Tuesday if your class meets then).
Mahalo,
Mr. Eric Haskins (substitute for Ms. Virkus until August 25)
Homework: Over the weekend, parents and students should both read and sign the letter that was distributed in class today. Also, check the syllabus and make sure that you have all the binder and divider materials required for this class. In addition, you need to put a cover on your book over the weekend. This is your first homework grade and should be an easy way to earn a few points! Finally, remember to read Section 1 of Chapter 1 in your textbooks and be ready to discuss the "section assessment" at the end of the section on Monday (or Tuesday if your class meets then).
Mahalo,
Mr. Eric Haskins (substitute for Ms. Virkus until August 25)
Sunday, July 27, 2008
Welcome Back Students
Welcome Cardinals to the 2008-2009 School Year.
Check the sidebar for syllabus and introduction letter.
Check the sidebar for syllabus and introduction letter.
Tuesday, April 29, 2008
Review Volcanoes
Do Now:
List 3 volcanoes you learned about from last weeks presentations. Include three characteristics of each volcano you learned about.
Today in class we:
Reviewed volcano material which included:
- Factors which affect whether a volcano has a quiet or violent eruption: Viscosity and Silica Content
- Life stages of a volcano: Active, Dormant, and Extinct
- Types of Volcanic features: Shield volcanoes, Cinder Cone volcanoes, Strato or Composite volcanoes
Due Wednesday:
Volcano Review in preparation for volcano quiz on Wednesday
List 3 volcanoes you learned about from last weeks presentations. Include three characteristics of each volcano you learned about.
Today in class we:
Reviewed volcano material which included:
- Factors which affect whether a volcano has a quiet or violent eruption: Viscosity and Silica Content
- Life stages of a volcano: Active, Dormant, and Extinct
- Types of Volcanic features: Shield volcanoes, Cinder Cone volcanoes, Strato or Composite volcanoes
Due Wednesday:
Volcano Review in preparation for volcano quiz on Wednesday
Tuesday, April 22, 2008
Volcano Project Presentations
Friday, April 18, 2008
Volcano Project
Do Now:
Draw the anatomy of a volcano, label and define the following parts: magma chamber, crater, vent, pipe
Today in class students had the opportunity to work in their groups on their Volcanoes of the World Projects
- Projects are due and will be presented on Tuesday, April 22nd
- See sidebar for links to project outline
Draw the anatomy of a volcano, label and define the following parts: magma chamber, crater, vent, pipe
Today in class students had the opportunity to work in their groups on their Volcanoes of the World Projects
- Projects are due and will be presented on Tuesday, April 22nd
- See sidebar for links to project outline
Wednesday, April 09, 2008
Viscosity
Today in class we:
Discussed the property of viscosity and its importance in volcanic activity
Participated in viscosity lab (see sidebar for download)
For Thursday:
Come to class prepared to do research for your volcano project
Discussed the property of viscosity and its importance in volcanic activity
Participated in viscosity lab (see sidebar for download)
For Thursday:
Come to class prepared to do research for your volcano project
Tuesday, April 01, 2008
Welcome Back Students
Today in class we:
- Reviewed earthquake quizzes
- Began discussion on volcanoes: Volcanoes related to plate boundaries, hot spot volcanoes, magma vs lava
Homework:
Earthquake quiz corrections due Thursday, typed and stapled to quiz
1st period: come with prepared answers for your video conferencing questions, also have questions prepared for the Maine students
- Reviewed earthquake quizzes
- Began discussion on volcanoes: Volcanoes related to plate boundaries, hot spot volcanoes, magma vs lava
Homework:
Earthquake quiz corrections due Thursday, typed and stapled to quiz
1st period: come with prepared answers for your video conferencing questions, also have questions prepared for the Maine students
Friday, March 14, 2008
Earthquake Quiz
Today in class we:
Took a quiz on the Earthquake Unit
Happy Spring Break! Have fun and be safe, I'll see you back for 4th quarter!
Took a quiz on the Earthquake Unit
Happy Spring Break! Have fun and be safe, I'll see you back for 4th quarter!
Wednesday, March 12, 2008
Earthquake Shake Lab!
Today in class students competed in a building contest to see who could build the most earthquake resistant building. Buildings were put to the test on Ms. Virkus' Shake Table. Students constructed very unique and creative buildings and had various degrees of success when faced with the BIG ONE!
Homework due Friday
Complete the post lab for earthquake lab
Study and finish review sheet for earthquake quiz
Homework due Friday
Complete the post lab for earthquake lab
Study and finish review sheet for earthquake quiz
Monday, March 10, 2008
Locating Earthquakes
Today in class we:
Discussed how seismographs can teach us about the magnitude of the Earthquake and our distance from its epicenter.
Discussed and practiced using triangulation technique to locate an Earthquake's epicenter using 3 data sets from seismographs
Began work on Earthquake Shake Lab
Homework:
due Wednesday: You and your group should have a drawing of your earthquake resistant building completed and ready to build
due Friday: Earthquake Review Sheet (see sidebar for downloadable copy)
Discussed how seismographs can teach us about the magnitude of the Earthquake and our distance from its epicenter.
Discussed and practiced using triangulation technique to locate an Earthquake's epicenter using 3 data sets from seismographs
Began work on Earthquake Shake Lab
Homework:
due Wednesday: You and your group should have a drawing of your earthquake resistant building completed and ready to build
due Friday: Earthquake Review Sheet (see sidebar for downloadable copy)
Tuesday, March 04, 2008
Faults and Seismic Waves
Do Now:
Name three types of faults and describe how they move.
Today in class we:
- Discussed three main types of faults: Normal, Reverse, and Strike-Slip
- Demonstrated how seismic waves move and reviewed types of seismic waves: body wave- p and s waves and surface waves- love and rayleigh waves
- Worked on fault movement lab
Thursday, February 28, 2008
Earthquake Webquest
2/28:
Today in class we:
Began work on Earthquake webquest in computer lab (see sidebar to download copy of webquest)
2/29:
Today in class we:
Reviewed plate tectonic test
Finished earthquake webquest and turn in
Homework due Tuesday:
- Typed test corrections
- construct fault blocks
Today in class we:
Began work on Earthquake webquest in computer lab (see sidebar to download copy of webquest)
2/29:
Today in class we:
Reviewed plate tectonic test
Finished earthquake webquest and turn in
Homework due Tuesday:
- Typed test corrections
- construct fault blocks
Tuesday, February 26, 2008
Earthquakes
Today in class we:
- Began the chapter on Earthquake
- Discussed the force of stress and 3 types of stress: tension, compression, shearing
- Finish watching "The Core"
Homework due Thursday:
Read pg 44-47 2.1 Stress and Faults
Complete questions 1 and 2 all on pg 50
- Began the chapter on Earthquake
- Discussed the force of stress and 3 types of stress: tension, compression, shearing
- Finish watching "The Core"
Homework due Thursday:
Read pg 44-47 2.1 Stress and Faults
Complete questions 1 and 2 all on pg 50
Tuesday, February 19, 2008
Plate Tectonic Test
Today in class we took the Plate Tectonic Test
Note:
Friday we will be viewing the movie "THE CORE", students are invited to bring in snacks to share with the class during this period.
Note:
Friday we will be viewing the movie "THE CORE", students are invited to bring in snacks to share with the class during this period.
Friday, February 15, 2008
Plate Tectonics
Today in class we discussed:
Convergent and transform plate boundaries
Reviewed for test
Worked on plate tectonic map
Homework:
Study for test on Wednesday
Convergent and transform plate boundaries
Reviewed for test
Worked on plate tectonic map
Homework:
Study for test on Wednesday
Monday, February 11, 2008
Seafloor Spreading and Plate Tectonics
Do Now:
List and describe three pieces of evidence used to support Hess's theory of seafloor spreading.
Today in class:
-We concluded our discussion of seafloor spreading, and began talking about plates, and plate tectonics
- Watched video on continental drift and plate tectonics
- Began plotting earthquakes and volcanoes activity
Homework: due Friday
Plate Tectonics Chapter review packet (see sidebar to download)
List and describe three pieces of evidence used to support Hess's theory of seafloor spreading.
Today in class:
-We concluded our discussion of seafloor spreading, and began talking about plates, and plate tectonics
- Watched video on continental drift and plate tectonics
- Began plotting earthquakes and volcanoes activity
Homework: due Friday
Plate Tectonics Chapter review packet (see sidebar to download)
Friday, February 08, 2008
Seafloor Spreading
Today in class we:
Reviewed seafloor spreading homework
Took mini-quiz on continental drift
Finished Do the Pieces Fit? Activity
Discussed the evidence used to support the ideas of seafloor spreading
Homework due Monday
Magnetic stripes worksheet
Reviewed seafloor spreading homework
Took mini-quiz on continental drift
Finished Do the Pieces Fit? Activity
Discussed the evidence used to support the ideas of seafloor spreading
Homework due Monday
Magnetic stripes worksheet
Tuesday, February 05, 2008
Seafloor Spreading
Do Now:
Define continental drift
Describe 3 forms of evidence used to support the theory of continental drift
Today in class we:
Reviewed homework and ideas of continental drift
Discussed the topography of the ocean floor: continental shelf, abyssal plain, ocean ridges, rifts
Discussed technology that lead to idea of seafloor spreading
Identified the theory of seafloor spreading
Homework due Thursday:
- Do the Pieces Fit? activity
- Seafloor spreading worksheet
- Study for mini quiz on Thursday: will cover heat transfer, continental drift, and ocean floor topography
Thursday, January 31, 2008
Alfred Wegner's Continental Drift
Wednesday, January 30, 2008
Plasticity of the Mantle Lab
DO Now:
From memory:
1. Define convection current
2. Draw a convection current and label the points of highest temperature, highest density, lowest temperature, and lowest density.
Today in class we:
Reviewed convection currents
Worked on Plasticity of the Mantle Lab
Homework due by end of class Thursday:
Lab write up on separate paper:
1. Title for the Lab
2. Purpose statement for the lab
3. Description of the lab procedure
4. Written obervations (#1-4)
5. Written conclusions (#1-3)
From memory:
1. Define convection current
2. Draw a convection current and label the points of highest temperature, highest density, lowest temperature, and lowest density.
Today in class we:
Reviewed convection currents
Worked on Plasticity of the Mantle Lab
Homework due by end of class Thursday:
Lab write up on separate paper:
1. Title for the Lab
2. Purpose statement for the lab
3. Description of the lab procedure
4. Written obervations (#1-4)
5. Written conclusions (#1-3)
Friday, January 25, 2008
Heat Transfer in the Earth's Mantle
Thursday, January 24, 2008
Tuesday, January 22, 2008
Earth's Interior
Do Now: Describe two characteristics of each layer of Earth's interior.
Today in class we:
Discussed the characteristics of Earth's interior from crust to core
Homework:
Seismic Wave Worksheet due Wednesday
Study for quiz on Wednesday
Today in class we:
Discussed the characteristics of Earth's interior from crust to core
Homework:
Seismic Wave Worksheet due Wednesday
Study for quiz on Wednesday
Wednesday, January 16, 2008
Earth's Interior Poster Projects
Today in class we:
- worked on completing our Earth's interior poster projects
- all completed work due Friday
- worked on completing our Earth's interior poster projects
- all completed work due Friday
Monday, January 14, 2008
Evidence for Earth's Interior
Do Now: List the three main layers of Earth's interior. Describe one characteristic of each layer.
Today in class we:
- Discussed two forms of evidence geologists have about Earth's interior: rock samples and seismic waves.
- Discussed how both temperature and pressure change as you move through the layers of Earth's interior.
Homework due Wednesday:
pg 12 Math Analysis 1-4
Extra Credit:
1. Bring in a food donation to share with the judges of Thursday's science fair. Items might include juice, fruit, pastries, and snack items (5pts)
2. Attend Wednesday's science fair open house. Find three projects that interest you, type a one page summary of the three projects that answer the following questions (10pts):
- summarize the purpose of each project
- briefly describe how the experimenter tested their hypothesis
- give your thoughts and opinions about each project
Today in class we:
- Discussed two forms of evidence geologists have about Earth's interior: rock samples and seismic waves.
- Discussed how both temperature and pressure change as you move through the layers of Earth's interior.
Homework due Wednesday:
pg 12 Math Analysis 1-4
Extra Credit:
1. Bring in a food donation to share with the judges of Thursday's science fair. Items might include juice, fruit, pastries, and snack items (5pts)
2. Attend Wednesday's science fair open house. Find three projects that interest you, type a one page summary of the three projects that answer the following questions (10pts):
- summarize the purpose of each project
- briefly describe how the experimenter tested their hypothesis
- give your thoughts and opinions about each project
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