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Physical Science 107: Lesson One

Students in this course have amazing energy. You are asking great questions! You are all coming to class and participating with wonderful enthusiam. This makes teaching lots of fun! Thank you.

This week we finished lesson one. On Monday and Tuesday both sections will begin lesson two: Ground Level Air Pollution. Follow this checklist to ensure that you are ready for lesson two.

1. Visit lesson one on the website. I’ve added some more information. I put up the powerpoint with large slides (student request). Go through each slide on the powerpoint to make sure you understand the main ideas that are presented in the diagrams. We did not cover the last four slides.

2. Read the Take Away (Main) Points I’ve added at the bottom of the page. This will help you organize all the information in lesson one.

3. Go over the questions and answer them in your journal.

This completes lesson one. The last four slides at the end of the powerpoint were not covered. One was about wind. One was about world climate. Do not be concerned with these slides at this time - we will discuss them in other lessons.

1. Visit lesson two on the website.

2. Read the posted NEWS articles.

3. Write down any questions you have about these articles.

4. Visit some of the background links and take a look at them. We will discuss this material in class.

Happy Learning!!

P.S. Remember, you can send me email anytime (jwalker@ccc.edu). I will answer it.

Phy Sci 107: How to Prepare for Class

In order to gain the most from the lectures it is so important to come to class prepared. I am still hearing from students that they cannot find information on the website. So here are some quick links:

Our course website:

http://justonly.com/physci/ps107/index.php

Lesson One: Earth’s Atmosphere

http://justonly.com/physci/ps107/lessons/atmosphere.php

What should you do to prepare for class?

Read the Lecture notes.
Look over the powerpoint slides.
Read the questions and think about them.
Read the news articles or other media.
Visit the background websites – see what they are about.

Learn everything you can about Earth’s Atmosphere.

What do we know so far??

Both classes have learned that the atmosphere is composed of two main ingredients – two gases – Nitrogen (78%) and Oxygen(21%) and that Oxygen is the reactive gas and Nitrogen is non-reactive.

Monday’s class has begun to learn about the layers of the atmosphere.

New Semester Begins in 26 days…

It seems a long way off but now is the time to being to prepare for your new classes. Early preparation can consist of light review, reading and media viewing that is more fun than work, browsing around the Internet following your interests. The idea is to keep your mind active and develop your curiosity. Once the semester begins you will not be able to control the pace of the learning you are expected to achieve – but you can now!

Physical Science 107: Current Public Issues in Physical Science

This Spring I will be teaching a course for the first time – Physical Science 107. This course is IAI approved as a 3 credit hour General Education science course (no lab). I’ll be presenting the course in four units: Air, Water, Earth and Fire. The course will exam a variety of fascinating and very current issues: Climate Change, Sustainability, Energy, Environmental Concerns – whatever is in the news. The goal of the course will be to develop the scientific literacy of the non-scientist and to allow students to gain an in-depth understanding of complex problems that affect all of us from the perspective of the scientist. I’ll be developing the syllabus and course website over the next few months. Please let others know about this course and let students know that they can email me, jwalker@ccc.edu, with any questions. I’m looking forward to teaching this course and anticipate many interesting demonstrations, lively discussions and fun projects.

Chem 201: Clouds

On Friday around 1:00 P.M. I took this photograph. The clouds were so thick and swirled; they really looked like whipped cream. Clouds are a type of colloid – liquid * water droplets so very tiny they are suspended in our atmosphere.

*In some clouds the droplets are made of ice.

Clouds

Clouds

Here is another image of the sky at about the same time.

Clouds

Clouds

Field Trip to Growing Power: An Urban Farm in Milwaukee

This was sent to me by Leone McDermott, the chair of our library department:

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FIELD TRIP TO GROWING POWER, AN URBAN FARM IN MILWAUKEE

Saturday, April 30
Depart from Truman at 11:30 a.m.
Return to Truman at 6:30 p.m.
$10 Tour entrance fee (payable in advance)
BYOL (Bring Your Own Lunch)

One Book, One Truman will culminate with a tour of Growing Power, an urban farm and community food center located in Milwaukee. The farm includes greenhouses, fish runs, beehives, hen houses, goats, turkeys, ducks, and more. Growing Power works not only for sustainable agriculture but also for community development through the promotion of equitable food access. The founder of Growing Power, Will Allen, received a MacArthur Fellowship in 2008 and was named one of the 100 most influential people in the world by Time Magazine in 2010. To learn more about Growing Power, visit its website at http://www.growingpower.org.

The event will last from about 11:30 a.m. until 6:30 p.m.; the farm tour itself will take 90 minutes. Transportation to and from Milwaukee will be via chartered bus. The only cost to participants is $10 for the tour entrance fee. People are required to bring their own lunches to eat on the bus, since there are no dining facilities at Growing Power.

Participation in this event is limited to 56 people from Truman’s students, staff, and faculty. If you would like to participate, please print and complete the attached sign-up and release forms. Return them with a $10 check made out to Truman College, with “Field trip” written in the memo line. You can send your completed forms and payment to Leone McDermott, Library, via college mail or give them to library staff members at the circulation counter or reference desk. If you have questions, please contact Leone at lmcdermott@ccc.edu or 773-907-4877.
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The two forms may be downloaded here:

Sign Up form
Release form

Gardening: Garden Soil Analysis

“Get the Dirt: Analyzing your Garden Soil”

On Monday April 25th at 2PM in Room 3162 Joy Walker will present a lecture and demonstration about soil. You will learn to recognize different types of soil. You will learn how to perform tests on soil pH and how to correct the pH of the soil for optimal gardening. You will learn how to perform tests for potassium, phosphorus and nitrates in the soil and why these nutrients are important for growing plants.

This event is presented as part of the “One Book, One Truman” project. The book chosen this semester is In Defense of Food: An Eater’s Manifesto by Michael Pollan.

Links:

United States Department of Agriculture: Natural Resources Conservation Service http://soils.usda.gov/education/

Dig It! The Secrets of Soil
http://forces.si.edu/soils/

A&L Great Lakes Laboratories
http://www.algreatlakes.com/

DHS HS-STEM Summer Internship Program – Jan 5th Application Deadline

http://www.orau.gov/dhsinternships/

New Student Email

Just log on at http://student.ccc.edu and give it a try. You will retain access for one year after the last semester you are a student – this service gives you access to microsoft applications and it also provides some “cloud” storage and of course it provides email. We’ve been told it is a big improvement over our previous email system for students.

Science and Technology Lecture – NWU – Sept. 7

Disaster in the Gulf

On April 20, 2010 the explosion and sinking of the oil rig Deepwater
Horizon in the Gulf of Mexico marked the beginning of what would become the
worst environmental disaster in U.S. history. With an estimated 215 million
gallons of crude oil spewed into the gulf over 87 days, the devastation to
the regions wildlife is unparalleled. Although clean-up operations are in
full swing, marine and plant life are suffering in a region that many fear
will never be the same again.

Dr. Ilze Berzins and Ken Ramirez from Chicago’s Shedd Aquarium will discuss
one of the nation’s richest environmental regions and what its future holds
at the Chicago Council on Science and Technology lecture on Sept. 7 at the
Northwestern University Chicago Campus, Baldwin Auditorium, 303 E. Superior
St. Reception and registration begin at 5 pm and presentation at 6 pm. Cost
is $10 in advance and $15 at the door. Cost for students is $5.
c2st.org

Physical Science Students Visit the Chicago River

Marta visited the river on Pulaski Street South of the Loop. She observed that the river is near an industrial district and suggests that the river is used for industrial waster disposal. She tells us it was a cold day. You can see water vapor above the river.

Magdalena visited the river in China town and noticed a dark green color and water that appeared to be frozen in some areas.

Thank you for bringing us these wonderful pictures.

Rivers

Today we talked about rivers and watched part of a National Geographic Video called Nature’s Fury about the great flood of 1993. Students are invited to carry out an extra credit assignment – go look at the Chicago River, take a digital photograph that you can send me by email, in the email describe the river (a few sentences).

Remember that on Mondays we meet in room 3833 now but on Wednesdays we are still in room 3974.

Rocks are made of minerals

On Monday (2-1) students indentified rock samples by observing their details and measuring their mass and volume to determine their density. Granite and basalt are the most common rocks – granite making up the core of mountains and basalt found on the ocean floor. Other rocks examined included the igneous rocks: diorite, gabbro, obsidian, pumice and felsite porphyry (rhyolite); sedimentary rocks: sandstone, conglomerate, shale, limestone; and metamorphic rocks: slate, schist, marble and quartzite. See photos of all rock types.

On Wednesday we went into the computer laboratory (3186) and watched videos about mass wasting. We also looked at soil samples and carried out research on a variety of terms such as talus slope. Students are requested to use Google Earth and to practice navigation. We will be doing google activities soon.

Rocks

On Wednesday we looked at lots of rocks. Keep looking! When you look at a rock try to decide if it is Igneous, Metamorphic or Sedimentary. If you decide it is Igneous then try to determine if it is entrusive or extrusive. The most common Igneous rocks are Granite and Basalt and they are around you everywhere. Other common rocks are (Sedimentary) limestone, sandstone, (Metamorphic) marble, slate. Our city buildings are often made of rock. Look closely at the walls.

Some students still cannot log onto the student portion of the website…

Please email me if you cannot access the student area of the website. We are in the second week of classes and there is critical information that you are missing.

Identifying Mineral Samples

After looking at a variety of mineral samples, physical science students examined unknown minerals and used their knowledge of mineral properties to determine the identity of the samples. A mineral’s streak, luster, tendency to react with hydrochloric acid or not, cleavage, crystal form and color provide clues. Because mineral samples can contain impurities this is not as easy as it might seem to be.

Samples of minerals included halite (salt), pyrite (fool’s gold), fluorite (our state mineral), feldspar (becomes clay), quartz (becomes sand), gypsum (wallboard and chalk).

Welcome to Physical Science 111

Today the Physical Science class met for the first time. We went over the syllabus, the grading policies and started to discuss the structure of the atom. For homework students should sign up for the website and begin reading about minerals.

Physical Science 111

This IAI General Education course satisfies the requirement for a laboratory science for our AA Degree and AS Degree.


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