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Evolution of Finches
Submitted by: Kevin D.
Recommended Grade Level(s):
Appropriate for: Grades 9–10
Time Requirements:
Prep Time: 30 minutes
Activity Time: 60–90 minutes
Teaching Topics & Concepts:
Biology students will construct a lab over evolution and identify beneficial adaptations that Galapagos' Finches could have
utilized to survive in their environments.
National Science Standards Alignment
HS-LS4-3. Apply concepts of statistics and probability to support explanations that organisms with an advantageous heritable trait
tend to increase in proportion to organisms lacking this trait. [ Clarification Statement: Emphasis is on analyzing shifts in numerical
distribution of traits and using these shifts as evidence to support explanations.] [Assessment Boundary: Assessment is limited to
basic statistical and graphical analysis. Assessment does not include allele frequency calculations.]
Materials:
• Tweezers/Forceps
• Plastic Forks
• Popsicle Sticks/Craft sticks
• Toothpicks
• Clothes Pins
• Plastic Cups
Background Information, Activity Setup:
Will need to set up baggies of food. Food includes kidney beans, black beans, cut up rubber bands, cut up pipe cleaners and
cotton balls. Students can share all utensils that represent beaks, but should be located in a universal location.
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Safety
• Students will be using toothpicks, forks and tweezers.
• Review general horseplay and safety guidelines.
!
• Sandwich bags
• White Kidney Beans
•
Black beans
• Bag of rubber bands
•
Pipe cleaners
• Cotton Balls
