Wednesday, July 27, 2016





My favorite activity in science in this semester is  fish lab because it exited and it was our first lab in class.
And i don't like it too because in this lab my fish and shrimp died.

Thursday, July 21, 2016

   


predator
sharp teeth
have an excellent vision
high speed for swim , stealth to get close to prey
prey
have high speed escaping


Monday, July 18, 2016

fish and shrimp lab 3


              Fish and shrimp lab 3

1.  What do you think kills the fish/shrimp--oxygen or temperature of water,  why? oxygen because when my group drop The bromothymol blue in the water turn yellow so , the  the fish doesn't have enough oxygen to breath. 

2.  Did you find anything interesting in the lab?
some fish alive!

3.  what other things could kill the fish? 
noise when students come to lab some student might too loud and the fish might be frightened.

Thursday, July 7, 2016

fish and shrimp lab 2

                                        fish and shrimp lab

                        1. Why do you think your fish lived or died? i think it will died because the water have too much   carbon dioxide and it  have not thing to eat .


2.  Groups with fish that are alive, how are their bottles different from yours?it doesnt  different much but  they have feed their  fish.

3.  If you had to do it again, what would you change to keep your fish alive?
i will change  bottle and i will feed  them .



Wednesday, July 6, 2016

fish and shrimp

                                                 
                                                     fish and shrimp Lab 

1.  describe what happened in the experiment and propose an explanation for your observations.we put water into  two bottel .Then put water plant into it and put shrimp into bottel 1 and put fish into bottel 2.
2.  explain why some of the jars changed color.  The bromothymol blue will turn yellow in presence of carbon dioxide. if the water turn yellow  because it have many carbon dioxide in that water . 
3.  describe how plants and animals are dependent on each other.the plant give animals oxygen  .
4.  make a prediction about what will happen in one week.the water will have more carbondioxide
5.  if anything happened, try to explain why.  sunlight causes the plants to give off oxygen.the fish will die because it dont have any food and have too many carbondioxide.