Sunday, April 26, 2009

Sailing Ships and Whales


AS more and more people are loving the oceans it is not always smooth sailing. We forget the waters are home to thousands of biotic factors and when we invade this ecosystem, we can come into contact with anyone of the community in the ecosystem. A population can be affected and an individual organism can be harmed. (did you notice all the vocab words??!!)

Sailing through the whales

Noise damages dolphins

Anoxic waters (no oxygen) This site will teach you something new. We know animals need oxygen, even those in the water. [This is the importance of algae, all the oxygen released from photosynthesis] Click on the FAQ tab and read a short interview about anoxic waters.

OK...one more. Oceans Pollution This is easy to read and interesting.

Would you be interested in studying
how we- humans- affect the worlds oceans?
Post me a comment and tell me what
you would study and why.

Talking about animals.....

We are done with ecology (sort of) and move to
Kingdom Animalia. Are you ready??
Our world is amazing and we still don't know the
real depths of its beauty.
Scientist are still discovering more species that are
too fantastic, more suited to a fantasy book of imaginary creatures.
Take a look at these organisms. Post me a few sentences about
The most amazing animal you
have ever seen...actually seen.








Flying Lemur in Malasyia







What is the most amazing thing I have ever seen? Our beloved dog Anne, gave birth to puppies in our pantry. They were tiny, black, wet fur balls that were a testimony to life that endures through reproduction and the power of chromosomes that exist in each cell. This is what I remember as I sit here. There are many other memories of animals I have seen that have amazed me. But I want to hear about your memories.

Tuesday, March 31, 2009

Food Web

Are you having trouble with the food web? Not sure how to put it together?
Here is a great interactive site to help you. Read through the page and when you get to the bottom click on "create a food web".
This will open a new window and you can practice making a web. Notice the different ecosystems at the bottom. You can click on these to see an example of a web in this particular ecosystem.

Have fun. Create_ a_ web

BIOMES


As we work on our NSP prestentation this week you might need more information on the biome you are researching. This site was created by 9th graders in Springfield Oregon. It links you to sites that describe the different biomes. click on the word below to access the page.




If you need extra help researching your area of the United States there is a sheet posted in class and on my edline page for your class.

Have you thought about what 3D object you will use in your presentation?

Post me some ideas that could be used. I know others will appreciate the ideas.


Monday, March 16, 2009

Nitrogen Cycle

Did you ever want to create a video about a science topic? Here are two videos from students that did just that. Both used the nitrogen cycle. We have been studying the cycle in class but mostly the nitrogen in the soil. Did you know that it also happens in the water? Guess what the most important part of the cycle is underwater???????????? You guessed it.. BACTERIA.

Watch both of these and then post me a science idea you would like to video.
I have access to a camera and I think it would be
awesome if someone got creative and made a
video of a favorite science topic
Video #1 is a group of biology students from college.
Video #2 is a group of high school boys teacing the nitrogen cycle

Sunday, March 15, 2009

CO2 and Coral Reefs



We have talked about the cycles of nature in class, especially the carbon-oxygen cycle.
A carbon sink if a natural or man-made reservoir that accumulates and stores carbon for long periods of time. The ocean is a carbon sink.
Click the link below to see how this is affecting the coral reefs.




Read the article and post me suggestions for reducing the carbon in the environment.
If you need help remembering the carbon-oxygen cycle, click here.

Saturday, January 31, 2009

Fungus and the tree man

This week in class we discussed several types of fungi that affect humans. Athletes foot is an infection caused by tinea fungus, which is a parasitic fungus. Click on the link near the foot to learn about this fungal infection. Many of you play school sports. What can you do to protect yourself from this fungus? Post me an answer.

Athlete's Foot



Many of you thought the abnormal growth of warts on the man from Indonesia, known as the tree man, was caused by fungus. I did some research and found it is not caused by a fungus. It is actually HPV, human papillomavirus. Notice the "virus" in the name.
What do you remember about a virus?
In order to understand
Dede Koswara's condition, click on the health link below and read the article.

CNN Health link


Sunday, January 18, 2009

The Protist Plasmodium and Malaria

This past week we learned about animal like protists. One group is the sporozoans. This group of parasitic protists are responsible for deadly diseases like malaria. Malaria is a disease that affects 40 million people each year, killing 2 million in Africa alone. The life cycle of plasmodium, a unicellular protist, uses the mosquito, a common pest in many parts of the world.

The disease arises when an infected mosquito bites a person and transfers plasmodium into the blood stream of the human. From there it travels to the liver.

Click on the mosquito picture on this page and learn about malaria from the Why Files.


What can be done to stop this deadly protist? Some scientists are working to change the DNA of the protist. Others are working on a treatment that would help the body fight the parasite once it enters the body. Remember learning about vaccines and the body making memory cells? Click on the link below and watch as a scientist describes what is happening in his lab with this new idea.

Breeding Mosquitoes

Post me a comment and tell me why everyone in the video are wearing suits and masks.
They were also working with microscopes to do their work. Tell me what you think about using the microscope. What is your favorite part of lab work?

Tuesday, January 13, 2009

The Class Protist Lab-Euglena


This past week we looked at Euglena and Paramecium in science class. It was fun and challenging to look at live organisms under the microscope. They didn't always stay still and focusing was tricky. We took pictures and some video of the microorganisms. Good job to all the students. These are Euglena, a unicellular and autotrophic organism. They are extremely small even under the microscope. Video (40x) and picture (10x) from Ashley's microscope. Well done Ashley P.!

Thursday, January 8, 2009

Great Protista Videos

There are just too many to show in class. I have collected some good ones here. Just click on the link to view the clip. Post me a comment and tell me which is your favorite and why.

amoeba engulfing dinner

euglena with visible eye spot

stentor bouncing an amoeba
The stentor doe not eat the amoeba but notice the other food being sucked up!

stentor getting rid of waste

Did you find any good protist videos online? Post me a comment and give me the link.

Tuesday, January 6, 2009

Bacteria Dance

If you can't get the bacteria dance out of your head here is the link that will take you there
Check it out and even show it to someone at home.
Bacteria Song

These stuffed microbes were in the video. Click this link to learn more about them. Stuffed Microbes- a crazy idea that sells!

Kingdom Protista

Yes, this slime mold is a protista!

This week starts our next chapter on Protista. This is how website Windows to the Universe describes protista:
Members of the Kingdom Protista are the simplest of the eukaryotes.
Protists are an unusual group of organisms that were put together
because they don't really seem to belong to any other group. Some
protists perform photosynthesis like plants while others move around
and act like animals, but protists are neither plants nor animals.
They're not fungi either - even though some might like to "think" they are!
In some ways, the Kingdom Protista is home for the "leftover" organisms
that couldn't be classified elsewhere. You might not think a tiny one-celled
amoeba has much in common with a giant sea kelp,
but they're both members of this kingdom.
http://www.windows.ucar.edu/tour/link=/life/protista.html

Check out the Microbe Zoo, a science site from Montana University.
Microbe Zoo

Click on the zoo icon on the site (looks just like the one here) and read about microbes for hours and hours! Ok, you might not want to read for hours but at least check out one microbe and post me a note about it. An extra surprise in class if you do :)
Remember more information is better than the minimum.