Welcome

If you would like to read the syllabus for the Life Science or Earth Science, please click on the links to access information such as classroom rules, the grading scale, and topics to be discussed.
One last thing that you might find interesting is a NASA picture of the day. Every picture has a great description of what you are seeing.


Enjoy!

Classroom expectations

I expect you to:

1. Always think safety first. NO HORESEPLAY IN THE LAB AREA!
2. Be in the room and prepared for class when the period begins.
3. Do your own work and work on science in science class.
4. Respect each other, yourself, and science as a worthwhile subject.
5. Follow all school rules including the dress code.
6. Take responsibility for your own actions!

I will not tolerate:
1. Swearing, offensive language, or rudeness
2. Tardiness
3. Cell phones in the classroom
4. Cheating
5. Physical Contact – hitting, kicking, pushing, etc.
6. Unsafe Actions – anything that you intentionally do that puts you or someone else in danger
7. Defiance

Wednesday, April 18, 2012

8th grade Chapter 21 Sec 3 Engines and Refrigerators

Here is a description of an internal combustion engine that is a 4 stroke.  This contains more information than needed in science, but the description is impressive.  The description talks about efficiency, power, the size of the engine, components, etc.











This is a device (similar to a diesel engine) which is called a fire syringe.  The concept is similar to a diesel engine and these people provide a nice explanation of how it works.






Here is a description of the 2 stroke engine and a couple reasons of why we use 2 stroke engines for small applications.









This example explains refrigerators and how refrigerators can make energy move from cold....and transfer to warm (which is opposite of what the book says normally happens..... warm moves energy to cold).


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