Frog Dissection

               In science class, i heard that we were going to be dissecting frogs. I was pretty excited, because i had done this procedure in fourth grade and i remembered that it was fun. The next day, we got our frogs, and i learned that it was more complicated than i remembered. My group partner cut open the skin of our frog- and revealed hundreds of eggs inside. It took forever to get them all out- and it was pretty disgusting too. We still found eggs everywhere afterwards. We cut out the liver, and opened up the stomach. Unfortunately, there was nothing in the stomach. We cut that out since it was of no use. We viewed a few more organs before our class ended.
                The next science class we resumed our place. We got to see the heart, the small and large intestine, the gallbladder, the lungs, and more. We were about to open up the frogs mouth to see the tongue but class ended. I learned a lot about how our body works from this experiment. I saw how the systems fit together and the approximate size. I learned how the frog works and how it must live, and to respect every animal i come across. Overall, this experiment was fun, and i am looking forward to dissecting a starfish.

some helpful links-
http://www.biologyjunction.com/frog_dissection.htm


a reaaaaaally cool frog dissection game
http://www.surgery-games.org/43/Dissect-a-Frog.html
R.I.P Wendall

Digestion lab

Today, we did a lab in class, about digestion. We cut up some boiled eggs and put them into beakers. The first beaker we filled with 10ml of meat tenderizer. the second beaker we put 5ml of the same mixture. The third one we put 10ml of diluted hydrochloric acid in, and the last one we put 5ml of the same  diluted acid and 5ml of the meat tenderizer. Only the last one reacted to the eggs, it bubbled a little. We are waiting for tommorow to see the final results.

Chicken wing blog

On Thursday, October 20, 2011, my teacher dissected a chicken wing in front of the class. She took off the skin and then she pulled on the muscles of the chicken wing to flex and relax, and it moved! She then cut apart the bone to show the bone and cartilidge. She showed us all the kinds of the organ systems except the nerves. At the end of the dissection, most of the kids in my class couldn't eat chicken for the next day!

Diffusion lab

Today in my science class i did a lab on Diffusion and Osmosis. This experiment used cornstarch and iodine. We put cornstarch in a plastic bag and tied it, then put it in a mixture of iodine and water. We wanted to see if the bag was permeable, which means it lets some materials through. It let in only a little bit of iodine, however, and it turned the cornstarch light yellow, and light purple on the bottom where it was touching the bottom of the beaker. Ending result- not very effective.