Explore: Bird Beaks
Page 302
Bird beaks introduction
Turn to pg. 302 in your Integrated Science bookThis is a investigative design activity so let’s
review investigative designYour investigative questions is:Suppose only one food source is available at a
time in an environment. Which of the four birds in the environment would be most likely to obtain food and survive?
A good investigation has:1. The investigation addresses the question being tested2. It tests only one factor or variable3. It keeps all other variables as constant as possible4. It has controls5. It contains multiple trials6. It is clear, concise and well planned7. It incorporates an organized method for recording data8. It is safe9. It provides evidence to support or refute your hypothesis or
leads to new questions.
Materials• Groups of 4 (each student
will have a particular type of “beak”)
• Lab Handout• Forceps• Toothpicks• Spoon• Clothespin• Marshmallows• Macaroni• Packing Peanuts• Large Beans• Water Tray• Cups
Water Bird Beaks
Bird Beaks
Food Types
Seeds
WormsWater
Beetle
Slug
Step 1: Design Experiment
Some things to check on in your design
1. All birds should feed at the same time with the same food
2. There should be a round of feeding for each food type.
3. You should have a way to keep track of how much food each bird captures
4. You must have a data table before you begin5. Make sure you have a way to keep your prey
from escaping to the floor
Test Beak to Food Efficiency
Test Food to Beak Efficiency
Drop Food in Cup & Record
Repeat at least 3 times!!
Repeat at least 3 times!!
Repeat at least 3 times!!
Cleanup
• Please cleanup• Save your worksheets for next time
Homework
Natural SelectionSpecialistPredator/prey RelationshipSimulationVariationAdvantageous (Beneficial) Characteristics