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.





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.
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.