This Week In Science #9

This week in science we did many things from research to dissecting. First we drew and dissected two small animals, we had to chose ether the giant grasshoper or a crawfish, we chose a crawfish. Than we researched another animal , we had to research a skate, a frog , a mouse and a fish. We chose to do a frog because we didn't want to do any sea animals because they smelled too strong . First we had to examine our frog and draw it and take pictures of its exterior . The next day we dissected the frog. We had to be very careful not to cut through the organs so we could examine them and take pictures of the insides..

We learned a lot this week and even though it was disgusting , it was very interesting. We learned a lot of the organisms we dissected. I learned what the inside of a frog looked like , and even though it smelled disgusting it was interesting to be able to dissect it . We also learned how to manage the tools for cutting and how to cut the animal with out piercing any of its organs. I really liked it because even though It had me gaging we could observe how amazing the inside of an animal looks like. We learned what the dorsal view ( view from the top ) and the ventral view ( view of the bottom ) of an animal.  One thing that was really interesting was that in the frog the lungs where behind the liver , you couldn't even see them with out lifting up the liver! I really don't want to dissect anything anymore because Im scarred of the disgusting smell.


While I dissected the frog my other table mates dissected a mouse, even though the two animals are completely different there were many things that where the almost the same. One orgasm that has the same function but is different in both animals is the large intestine, while its yellow on the frog its pink in the mouse. When dissecting we removed the heart of the frog and only a few drops of blood came out while when we removed the heart of a mouse a lot of blood came out, even though they were basically the same size. In both organisms the liver covered the lungs but only in the mouse it covered the heart because in the frog it was right between the two parts of liver.

This Week In Science #8

Side View

Dorsal View

This week in science we did many things. We started to dissecting  animals  some of us dissected a cray fish others dissected a giant grass hopper. We had to draw the animals first , we drew the dorsal view which is how the animal looks from the top , we also drew the ventral view which is how the animal looks upside down. A proximal is something that is closer to the center of the animals body for example the place where the legs and the body connect. A distal view is the place in the animals body that is not close to the center for example the end of one of the legs of the cray-fish. We dissected the cray-fish starting from the posterior part of the cray-fish ( tail ) to the anterior part ( head). It was really nasty not because of the insides but because of the smell it was very hard to cut it open with out gagging. We look pictures and analyzed some very important feature of the cray-fish the its gills , which where really weird.

This week in science we learned a lot of things. We learned the parts of the cray-fish like the dorsal view, ventral view, proximal and the distal parts of the cray-fish . We also learned words for things like butt which is posterior and head which is anterior . It was really nasty because when we opened the cray-fish up it smelled really strong and it was hard not to get sick. One thing that was really interesting was the gills on the cray-fish .