Pages

Tuesday, December 20, 2011

Classification Challenge


this is a Uca pugnax 

Kingdom - Animalia ( means its an animal ). 
Phlyum - Arthropoda ( means its an  invertebrate animal  having an exoskeleton ).
Class - Malacostraca ( the largest of the 6 classes , includes crabs, lobsters , shrimp, etc ). 
Order - Decapoda ( means it has 10 feet ). 
Family - Ocypodidae ( means its in the family of crabs , that includes ghost crabs ).
Genus - Uca ( its a group of over 100 species ).
Species -  ( U. pugnax ) There are man species of Uca , over 100 crabs. 

The other members of my group picked a fish , shrimp and jelly fish. These animals are similar because they all are sea animals , but my animal can be on land. 

My animal is special because one of its claws is bigger than the other giving it a distinct look. There are over 100 species of fiddler crabs. 

Monday, December 12, 2011

Cricket Investigation

   Question : Do crickets prefer light or dark environment's ?
  
  Hypothesis : I think the crickets will like the dark environment ( a cave , toilet roll ) because they seem to like cool weather things. We did a previous experiment on wether they like wet or dry environments , and the crickets liked the wet side better. So i think they will prefer the dark side.

 Background Research : Crickets are omnivorous so they will eat almost anything. They need water , and the need a lot of air so any containers should have holes. Crickets also seem to like wet environments more than dry.
      

                                                                                      
This shows the cricket when we placed it in the tube. The cricket did not seem to like being in the tube , but the cricket was on top of the tube.

       
This picture shows the placement of two crickets. The top pic is the first cricket and the second one is the second cricket. 

My data does not support my hypothesis. I thought that the cricket will like the cool environment , but it always went on top of the tube. So my data shows that the crickets like the light. The cricket crawled out two times when placed inside the tube. So my final conclusion is that the crickets like the light. 

Friday, December 9, 2011

This Week In Science #6

      

  This week in science was very fun. My group and I had to observe crickets , recored data , and we  made a chat about jelly beans. The week started with the crickets. We observe them and their behavior's. Then we recorded it by putting dots on a piece of paper , marking the position of each cricket every 15 minutes. We also tried to group jelly beans using a dichotomous key. We used pictures and descriptions of the jelly beans to group them.

    This week in science i learned many interesting things. I learned how to use a dichotomous key. Its a very good way of grouping animals by species , and then brakes them by using specific features. But in my situation i had to use jelly beans and group the different flavors using the dichotomous key.
      
      
      
  

  

Friday, December 2, 2011

This Week In Science #5

                          



   This week in science , my friends and I shot our paper  rockets. We had three rockets and each of them had there own amount of fins. We wanted to see if the number of fins, affected the flight of the rockets. This week we also observed some crickets. We had to draw 3 pictures of what we saw , and write down some of the crickets behavior. Last we viewed videos all a class on youtube, and we watched how animals  behavior.
    

  
   This week i learned about crickets. I was given a sheet with labeled cricket parts on it. I never knew the names of the cricket body parts , so that was interesting. For example , the body of the cricket is called the abdominal segment , and behind the head is called the thorax.