Bird Beak Lab Who will survive?

Instructions Take out one piece of paper and a pencil. Clear off your desk. Follow directions on the following slides to create your lab report.

Problem? How did the finches on the Galapagos Islands different shaped beaks affect their survival?

Materials Tooth pick Chop stick Spoon Tweezer Timer Pencil Cups Plate Notebook

Procedure 1.Select your beak type. 2.Place plate in center of table. 3.Wait for “food”. 4.“Eat” as much as you can in 30 seconds. 5.You may “eat” only one piece at a time. 6.Place each item you eat in your cup. 7.After time, count how much each bird ate. 8.Record numbers in data table. 9.Repeat for trials 2-4.

Create the data table below on your paper. Record the amount of food eaten by each beak for trials 1-4. Beak TypeTrial 1 Chick Peas Trial 2 Rice Trial 3 Bugs (raisins) Trial 4 Lentil Chop Sticks Spoon Tweezer Tooth Pick

Hypothesis… What do you think will happen in each trial? Which beak will be successful? Use what you know about natural selection and survival of the fittest to create your prediction.

Results Create a bar graph with FOUR columns showing results for each trial. X Y Beak Shape Amount of Food Eaten Chop Stick Spoon Tweezer Tooth Pick Chick peas Rice “Bugs” Lentils

Results Create a bar graph with FOUR columns showing results for each trial. X Y Beak Shape Amount of Food Eaten Chop Stick Spoon Tweezer Tooth Pick Chick peas Rice “Bugs” Lentils

Conclusions 1.Which beak shape were you? 2.In which trial were you successful? 3.Was your hypothesis supported/rejected? 4.How does this lab illustrate survival of the fittest? 5.Based on your results, which beak would survive to reproduce on an island with only rice for food?

Limitations 1.Is there anything that you would change to make this lab better if you could repeat it? 2. What would you change?