Monday, January 31, 2011

Muscles!

There are several cool muscle links out there!  I'm putting a few links here to try.  If you find better ones, let me know!

http://kidshealth.org/kid/htbw/muscles.html - This one has good basic info.

http://kidshealth.org/kid/htbw/_bfs_MSmoviesource.html- A movie

http://yucky.discovery.com/flash/body/pg000123.html - This site is ok. You can learn about other "yucky" body stuff too, like snot, poo, and puke!

 http://health.howstuffworks.com/human-body/systems/musculoskeletal/muscle.htm- There is an interesting video on steriods on this site, plus some really good muscle info!

http://www.encognitive.com/node/1127- This site starts with basic pictures and terms, then gets more comlicated for those of you who are interested in the inner workings of muscles!  Check it out!

Thursday, January 27, 2011

Earthworms

Yes, it's dissection time!!  Check out these websites for some good earthworm information. 

http://www.backyardnature.net/earthwrm.htm

http://yucky.discovery.com/flash/worm/pg000102.html


http://www.mhhe.com/biosci/genbio/virtual_labs/BL_14/BL_14.html  This one is a virtual dissection!

Studying the Digestive System

Well, what else do you make when you are studying the digestive system???  Poop, of course!  Can you still name the three things that we talked about which make up poop (feces is the scientific word for it)???  By the way, you're just looking at oatmeal, cocoa powder, sugar substitute, and water here!!



The REAL contents of feces is undigested plant material, bacteria, and bile (which gives it it's brown color)






Saturday, January 22, 2011

Measuring the Surface Area of our Skin




First we estimated the surface area of the average middle schooler's skin, then we measured!  Most of the groups weren't too far off!  The "average" adolescent has 14,000 cm2 of skin or roughly the size of a twin bed if you peeled off all your skin and laid it flat...yeah, gross thought!
 

 




 
 



 

Tuesday, January 11, 2011

Biology Final Tutorial PART 2!

Ok, so I had said this would be a video, but I'm not going to do that now.  As of right now, 1:35 p.m., I've only heard from 10 students out of the 55 who I have scheduled to take the exam.  I hope I'll be hearing from more of you soon!  If you have no idea what I'm talking about, see the blog (Tutorial Part One) below! 

Ok, so we've been covering basic biology this first semester.  Biology, the study of LIVING THINGS, is a very broad subject.  We've spent the first part of the year talking about microscopic things...cells, the organelles in the cells, the DNA which controls the cell.  We quickly explored pond organisms...euglena, paramecium, and amoebas at the beginning of the school year.  Then, we moved on to animal and plant cells.  You need to know the stuff inside the cells...what do ribosomes do?  Make protein.  What are centrioles?  Vacuoles (where do you put your vacuum?)  Mitochondria?  You should know this stuff easily by now!  :)

There will be some basic genetics information on the exam.  A couple of blood type questions.  You will definitely need to know photosynthesis and cellular respiration!  KNOW THE FORMULAS!!!  You will also need to understand MITOSIS!!!  How about the element Iron?  Do you know the symbol?  (Fe)  How about Ca?  Think about it!  Know the following elements...Al, Ca, C, Cl, Cu, Au, He, H, Fe, N, O, Na, Zn. 

Know about chlorophyll...it's a pigment!  Where is it found??? 

Definitely study your Moneran and Virus information.  Know the term LATENT.  Know the LYTIC CYCLE.

All I can say is that I've just looked over the exam again.  It looks easy to me.  IF YOU STUDY the stuff on the study guide.  There are no trick questions.  I want you to do well and that requires effort on your part. :)

Email me if you have questions.  I'll check my email periodically through out the day until 9:00 p.m. tonight.  Get lots of rest tonight and eat a breakfast that includes protein (carbon, hydrogen, oxygen, and nitrogen) so your brain will be working at it's best tomorrow morning!

I'll see you at 8:00 a.m in the MPR! 
Mrs. D :)

Online Tutorial PART ONE....

Hello Snowday!  Seems a little odd since it's so sunny outside to be at home, but it's COLD out there!  As for the Science Final Tutorial, we're going to do it in parts to break it up.  Part one, is below right now.  It is composed of several questions that I want you to search for either using your notes, the online text, or the Internet.  Then, you must email me your answers at adokken@wcsks.com.  Yep! This involves some work! 

Part Two of the tutorial will be a video I post later this afternoon (around 2:00 p.m.).  It will not be a long video, but will hit upon some of the important points from the study guide!  If at any time you have questions, you can email me.  I will check my email periodically through the day. 

Here we go...........

Question #1- Make sure you can list all FIVE KINGDOMS (Remember the "handy" way to recall them).

#2 List the SEVEN LEVELS OF CLASSIFICATION (King Phillip, Can, Order, Fresh, Green, Spinach)

#3 Who was it that came up with the "two part naming system"?  (Taxonomy is the classification of all living things....this man was famous for giving organisms "Latin-ized" names)

#4 Who was the scientist that accidentally discovered Penicillin?  (He is famous and you need to know him...Look on the Internet!  It's Easy!  A good way to remember him is to think of "Flem".  When you get sick, you sometimes have a lot of 'flem" (spelled phlegm and refers to mucus) in your throat.  Yucky!) 

#5Penicillin is an antibiotic used to kill what? 

#6 What kind of a shot is given to prevent a viral disease?   Look up on the Internet what that shot is made of.

#7 How are animal cells and plant cells different?  Name 3 differences.

#8 When water molecules pass across the cell membrane, we call this ......?

#9 Here's a reveiw question from lower school science....What is the difference between herbivores, omnivores, and carnivores?  (should be easy?!)

#10  If a person has type B blood, then what type of antibodies does that person make?    How about antigens?  

Ok, that is enough questions for now....I hope you have ALSO been able to discuss in detail the points listed on the study guide.  You should be able to explain the points to someone.  If you don't have it with you, It can be found on my blog!  One of the things listed (#6 on the study guide) is the basic characteristics of living things.  I will list them here so you will definitely know them!    ALL LIVING THINGS:
  1. are made of one or more cells
  2. obtain and use energy (eat, photosynthesize, decompose)
  3. grow and develop
  4. respond to their environment (through sound, light, pressure, odor, or temperature) Example:
  5. reproduce
  6. adapt to their environment (some organisms are dessert dwellers, while others have adapted to the arctic!)
Don't get this confused with the Cell Theory...you should know that! 

Some of the things listed here today we haven't covered in a while, so that is the reason I'm going over it now.  You will see a question or two about these subjects, but most of the exam is over cells, genetics, and bacteria :)  Don't worry, if you study, you will do well!  I will email you back once you have answered the above ten questions!

Happy studying, Mrs. Dokken

Monday, January 10, 2011

Biology Study Guide for Final Exam

Science Final Study Guide
*****All of this information can be found in your Science Binder or in the online text book!****
1. Scientists to know: Anton Von Leeuwenhoek, Robert Hooke, Carolus Linneaus

2. Understand the metric system prefixes and their values (milli-1/1000th)

3. Write the 7 steps of the Scientific Method

4. There will be one or two basic microscope questions (what magnification level is the eye piece?)

5. Identify the common elements (N,O,H, C, etc…)

6. List the basic characteristics of Life (see page 36 of old text)

7. Know the cellular structure of animal and plant cells and be able to explain their functions.

8. Understand the structure and reproduction process of a virus

9. Know the Cell Theory

10. Compare and contrast photosynthesis and cellular respiration (know reactants and products)

11. Review the stages of Mitosis (I.P.M.A.T)

12. Know the four bases of DNA

13. Name the four blood types and know who can donate and receive from whom

14. Be able to work a punnett square

15. State the seven major levels of Classification (King, Phillip, Can…) (K,P,C,O,F, G, S)

16. Know what two levels of classification make up the Scientific Name and know the scientific name of humans.

17. Be familiar with the 3 basic shapes & names of bacteria

18. How can bacteria be helpful and harmful

19. Explain how viruses and bacteria are different

20. Terms to know: prokaryotic, eukaryotic, decomposer, consumer, producer, diffusion, osmosis, autotrophic, heterotrophic, homozygous, heterozygous, phenotype, genotype, carrier.

21. Essay (Short Answer) Question Topics: Scientific Method, Photosynthesis and Cellular Respiration, or Mitosis.