DYO#2:Fruit Fly Population Investigation

This week in science we have to put our data into our own words: 


This data table that I did was to put 3 fruit flies tubes that we view and we have to see how many adults are in after 3 weeks.


Question:


If I place four females and two males inside of a vial with a steady food supply, how many fruit flies will there be in three weeks?


My Hypothesis:


If I put 4 female and 2 male in a vial with a food source for 3 weeks,then I expect to see 646 fruit flies in the tube by having more eggs because,each 20 eggs a day,by the end of 1 week there should be already 140 eggs and it takes 8 days for the eggs to turn into larva's.

My data supports my hypothesis because in our science class we have other students with their fruit fly tubes with (Selena Group have #18 and Vincent Group have SJRS).Our group we have #20,so we have to make a chart in our notebooks to keep contract of our fruit flies.

Background Research:


Fruit flies are small that have brick red eyes,that are yellow-brown in color. Male fruit flies have a dark tip. Females have a lighter colored tip.Fly nap we use that to put fruit flies to sleep to count them,so we can see how many are there and use them for experiments.Fruit flies have different lifestyles; Egg,Larva,Pupa,& Adult.The egg looks like rice but, just leaving people a "Warning" just in case they don't think it's food(LOL :-D)

• Egg (1 day)- This is a really tiny egg. I couldn't see them inside my vial for my experiment.
• Larva (7 days) - Larva usually slither around the vial with food covering them. I usually found them swimming around the bottom of the tank in the food supply. They look like tiny tiny maggots.
• Pupa (6 days) - Pupa's are always in a cocoon. The shell is brown and you can usually see the fly almost developed. When you find the cocoon empty it means the fly has already gotten out.
• Adult (2 days) - A fruit fly looks exactly like a very small regular house fly. Its head is red, and it has small see through wings. 

It take approximately 16 days for a fly to be born and to produce eggs.


Procedure: 

• Step 1:I set up three different vials with a food source with 4 females and 2 males in each one.
• Step 2: I put all the vials in a basket in the corner of the room. So it will have room temperature.
• Step 3:We checked our vials weekly and recorded our observations on a table in our notebooks.
• Step 4: At the end of 3 weeks (on day 21), we used "Fly Nap" to put the flies to sleep. We put the fruit flies that's sleeping on a index cards,and counted them in groups.

                                                              ANALYSIS

When I looked at the 3 vials I had tested and each group had different numbers on their fruit flies container.

Fruit Fly DYO-Analysis and Conclusion Worksheet

• Vial # 20: 67 fruit flies.
• Vial #18: 70 Fruit Flies.
• Vial SJRS: 114 Fruit Flies

If your data does NOT support your hypothesis,explain and give reasons why you think that might be:

1. Most of the flies died by drowning in the food supply at the bottom of the vial.
2. There could've been little drops of food on the glass of the fruit fly container,so it can be easy for them to eat instead of falling in it.
3. Most of the dead fruit flies were squished by the foam top. The squished bodies could be thrown away or check to see if the fruit flies have babies.

                                                            CONCLUSION


   In my experiment, I tried to find out if the number of fruit flies I predicted there to be after three weeks was to pick fruit flies that have different gender and see if they will have babies like for an example my project 4 females and 2 males.I want to find out how many babies of larva's and pupa's would it be on 3 weeks.I got the answer by looking on the internet for information. At the end of the experiment, my data did not match my hypothesis because when one person in our group had left up the foam top and some fruit flies got squished up on the glass,so they probably died or still alive but,we had to use the "Fly Nap" to put them to sleep to safe their life,so when they wake up they be in the container instead of being squished up.There were flies that got caught in the food at the bottom of the vial. If I repeated this experiment I would want to give the flies more space and food to live.
   I would also make sure that the vials were stored correctly (Ex: the right temperature, standing up,don't shake it or play with it because it's not a toy).

Post 11: This Week in Science (No Impact Man)

    In science our class we watched a movie called "No Impact Man" and it talks bout how to use stuff in their house instead of buying more stuff that they don't really need and keep spending their money.It means eating vegetarian,buying only local foods,turning off the refrigerator and etc.It's basically of stop using things that waste your time that you do everyday.We had to write notes in our notebooks about what we think about the movie.
  I think the no impact man's behavior lower his negative impact on the environment by not using the refrigerator to keep food and drinks cold and fresh.Since they don't use their refrigerator,they use a small cooler to put ice and stuff that they need the most to keep them fresh to eat.
  My reactions about this film that why they couldn't use their hands to wash clothes instead of washing it with their feet in the tub with water.I was shock because of them washing their clothes in the tub,cooking vegetables and cutting up fruits for the fruit flies and worms in the box that they got from outside.

Post 10: This Week in Science (Fruit Fly DYO Part 1)

  In this week in science David and Marc had us in 2 tables with 3 groups in the classroom.So our side did a chart in our notebooks of week 1 and we had to notice in 2 group about what's happening in our fruit fly tube.I notice about Selena's tube that it's a lot of larva's crawling around in the food and like 2 fruit flies alive so we only had a couple of minutes to do that.

Fruit flies and larva's in the tube

So we had to switch to the other station to the science lab to do a line graph and a bar graph that have to do with our fruit flies.The other group was in the science lab doing graphing and now they have to see what's happening in their fruit flies tube.


 I learned that fruit flies have to be in room temperature and they love eating different kind of  fresh fruits and vegetables.

Post 9: This week in science (Fruit Flies Part 2)

   This week in science my group and I did a chart of the rate in growth of fruit flies to see if our Male,Female & Female flies make babies but,it's like the whole generation.David fed our spider with the fruit flies,so the fruit fly caught in the web so our spider clumsy crawled to the fruit fly fast and started wrapping it with the web for a long time then the spider just put it on top of his stomach.

Daddy long legs wrap up the fruit fly in their web and eating later .

One thing I did in science was putting the fruit flies in our tube to see how much babies would it be on 3 weeks.I notice that a little bit of our insects in our tank is alive like the worms and centipedes.I also notice that our spider clumsy made a spider web on the sticks and he's hanging up side down and in our 2 females and 1 male tube we have 1 larva in the food.I hope my group get more larva's like around 24.
  This week in science I learned that male fruit flies are hairy and females are light at the bottom.I also learned about fruit flies that when you wanna use them to count,you have to use fly nap to put them to sleep for like 40 mins.

Post 8: This Week in Science (Fruit Flies Part 1)

Fruit flies in a tube with their food at the bottoms and cotton stuff inside on the top.

  This week in science cohort 3 did a little chart in our notebooks with 3 flies:
1. male,male,male
2.female,female,female
3.male,male,female
4.female,female,male
    If the flies was in the same tube together we have to see what will happen if the flies will make babies or not.We also saw a trade of the "Drosophila Life Cycle"on the paper.

1st is the male & female on top, 2nd is the egg, 3rd is the small larva, 4th is the medium larva, 5th is the big larva,then last one of the life cycle is the pupa.

 
 I learned from fruit flies that when you wanna count bugs you have to use fly nap to put them to sleep and the flies are small so how you suppose to know if they female or male. I could tell if its a female flies and a male flies because on the internet it shows that the male is hairy and the female is not.

Post 7: This Week in Science (Ecosystems)

Me,Melody & Tianna at the field trip in the garden.

  This week in science I did a group project with Melody & Tianna with our spider habitats finding insects for our spider to eat.In cohort:3 went on a field trip in science to the garden,so Melody,Tianna, & I went to get bags for our hands,then we took our tanks and 1st we put pebbles in our tank, 2nd we pick up dirt from the ground with the shovel and put dirt on top of the pebbles,3rd we put our rocks,plants,mini cave for our spider to live in, we sprayed water in the tank.We went around the garden to look under rocks and dig through dirt to find centipedes,worms,snails,slugs and other insects that spider like to eat.
    One thing in my terrarium is that our 2 snails is moving on the glass and plastic.Second thing I notice that me,melody found a bug moving on the stick in our terrarium,so we didn't remember catching that.I told melody that bugs be crawl on sticks and leafs that's how they got there.
   This week in science I learned that spiders eat a lot and these insects in our tank can crawl fast except the two snails we have in our tank because their slow.I learned that some insects in our tank die fast.I also learned that when you put insects in the terrarium their like half dead and alive.

This is our tank with our insects,with sticks as our mini cave for our spider,and moss on top of the rock.

   I'm curious about the spider because I hope the spider won't break the plastic that we put on top on the tank with tape on it and then we put the cover back on.I also hope that the snails stay alive in our tank because we have 2 that is small that's light green and the other one is big that's tan with red squirls on it.

Post 6: This Week in Science (Spider Habitat Design)

     This week in science I did a group project with our spider habitat design to see what we will put in our tank to build a home and put food in it.My group also did a game called "The Carbon-Oxygen Cycle" on the internet that shows:Atmosphere,Surface Ocean,Marine Life,Deep Ocean and Plant Life.This game is basically showing us how carbon goes around the board,but if you land on the orange star question mark you have to answer the questions if you get it right then you move on to the next question that's around there and if you land on one of those categories it tells you about what you don't know or wanna know.
   On our group poster we made a food chain with the Sun-->Bonsai Tree-->Bugs-->Mr.Spider,then we did a abiotic and biotic chart of our spider,we did a top view and a side view,so people could see what's inside of our tank,the relationship with our spider is a predator and the bugs is the prey,and we also did a supply list of the things we will be putting in our tank.In our tank were gonna have: dirt,water,bonsai tree,bushes,a cave,rocks,bugs and our last and not least which is our spider.
   This week in science I learned that a carbon/oxygen is a diagram with our spider,tree,and the insects.We are learning how carbon and oxygen cycle through ecosystem.
             Spider---->Tree---->Insects. I also learned that spiders need a lot of supplies to survive themselves in their environments.My 3 partners in this group project are Melody, Tianna,& Aicha. We did a good job on this project and making a home for our spider in the tank........