This Week In Science

On the first day we had to create and set up our blogs and create our first post. The post was entitled First Impressions, in this post we had to write about our thoughts on frogs and frog dissection. I didn't really know that much about frogs and some of the things i learned came as a surprise to me. On the second day we finished customizing our blogs and we updated our profiles. We also conducted research on frogs and why they are good bioindicator and we wrote it down in our notebooks. Then in block 2 we finally got to do the dissection! I was so excited to do the dissection I always wanted to dissect a frog! I was the surgeon it was just so cool!! Then on friday we got to remove the frogs organs and we had to place everything on a worksheet to show David. Frog dissection has been one of the coolest things i've done in any science class.

I learned many new things. I learned that they're about 2,700 species of frogs in the world. I also learned that some frogs change the color of their skin with changes in the temperature, light, and humidity. I learned all this when I researched frogs. Another thing I learned was that many frogs shed their skin several times a year. They pull off the old skin with their legs, and usually eat the old skin. During the dissection i learned that frogs have similar organs to us, like a heart, the liver, the large and small intestines, stomach, and spleen. I was surprised to see that their organs almost looked the same as ours. I also learned how to tell if a frog is a male or a female by looking at their thumbs, if they have fat thumbs it means its a male. At first i thought that our frog was a male but when we cut it open we saw that it had eggs inside, so it turned out to be a female. one interesting thing i learned was why frogs are good bioindicators. they're good bioindicators because frogs as bioindicators can alert us to problems in our environment. Also because their population are localized and impacts to the uplands and/or wetlands where they live may have significant effects on a frogs population.

This picture shows our frog "Skipper" before we cut it open. I chose this picture because it gives a clear view of the frog before we dissected it.

This picture shows when we cut the frog open. I chose this picture because it shows how to carefully do the dissection and use the tools.

This picture shows the open body cavity of our frog. I chose this picture because it shows a good example of how to cut open ur frogs and what it should look like after being cut open.

This picture shows what we did after cutting "skipper" open, we had to take out all its organs. I chose this picture because it shows the correct way of cutting them out.

This picture shows how we cut out all the major organs like the heart, liver and stomach. I chose this picture because it shows how our frog looked like after we cut out the major organs.

This picture shows what we had to do with the organs after taking them out of our frog. I chose this picture because its a good example of how the organs should look after being taken out of the frog.