Learning Objectives

• Define camouflage and competition in the context of animal survival.
• Explain how physical traits (like color) affect an organism's chances of surviving and reproducing.
• Analyze and Graph data from a simulation to show which traits were most successful.

Materials Needed

• 1 large bag of M&Ms (standard colors)
• 1 large sheet of "busy" patterned fabric or wrapping paper (floral, multi-colored, or camouflage patterns work best)
• 1 sheet of solid-colored construction paper (ideally matching one M&M color, like orange or green)
• Paper plates or small bowls
• Stopwatch or 25-minute timer
• Graph paper and colored pencils
• Science Journal

1. Introduction (The Hook)

The Scenario: Imagine you are a hungry bird flying over a meadow. You haven't eaten all day! Below you, there are hundreds of little "M&M bugs" crawling in the grass. Some are bright red, some are brown like the dirt, and some are green like the leaves.

The Question: Which bugs are you going to see first? Which bugs are going to live long enough to have babies and grow their family? Today, we are going to play the role of the predator to see how camouflage and competition decide who survives in the wild.

2. I DO: Teaching the Concepts

Camouflage: This is a "disguise" provided by an animal's appearance. It allows them to blend into their surroundings so predators can't find them, or so they can sneak up on their own food. Think of a Polar Bear in the snow or a Walking Stick insect on a branch.

Competition: In nature, there isn't always enough food, water, or space for everyone. Animals have to "compete" or race against each other to get what they need. The animals with the best adaptations (like being faster or better hidden) usually win the race.

Real-World Example: Show a picture or describe the Peppered Moth. Before the Industrial Revolution, light-colored moths blended into trees. When soot turned trees black, the dark moths suddenly had the advantage! They "won" the survival race because they were better hidden.

3. WE DO: The M&M Survival Challenge

This activity simulates how camouflage helps an organism survive competition from predators.

1. Setup: Place the "busy" patterned paper on a table. This is our "habitat." Count out 10 M&Ms of each color (60 total) and scatter them across the paper.
2. The Predator Strike: The student is the "Predator." Set a timer for 15 seconds. Using only their thumb and pointer finger (the "beak"), the student must grab as many M&Ms as possible and put them on a plate.
3. The Count: Once the timer stops, look at the M&Ms left on the paper. These are the "Survivors."
4. Round 2 (Optional): Repeat the process on the solid-colored paper. Notice how much easier it is to see the colors that don't match!
5. Data Collection: Create a simple T-chart in the journal.
   • Column A: Color (Red, Blue, Green, Yellow, Orange, Brown)
   • Column B: Number of Survivors

4. YOU DO: Graphing and Reflection

Activity 1: The Population Graph
Using the data collected, create a bar graph. The X-axis (bottom) should list the colors, and the Y-axis (side) should show the number of survivors. Color each bar to match the M&M color it represents.

Activity 2: Reflection Paragraph
Write a short reflection (4–5 sentences) answering the following:

• Which color survived the best in the patterned habitat? Why?
• Which color was the most "at risk" (eaten the most)?
• How does this experiment show competition? (Hint: The M&Ms were competing to NOT be eaten!)
• If these M&Ms were real animals, what would the next generation look like? (Would there be more of the hidden color or the bright color?)

5. Conclusion (Recap)

• Summary: Today we learned that survival isn't just about luck; it's about how well an animal fits into its environment. Camouflage is a powerful tool that helps animals win the "competition" for survival.
• Success Check: Ask the student: "If a green frog moved from a green pond to a brown desert, what would happen to its chances of survival? What trait would help it survive better in the desert?"
• Final Thought: Nature is always changing. As habitats change (like our paper swap), the traits that help an animal survive might change too!

Differentiation & Adaptability

• Scaffolding (Struggling Learners): Provide a pre-drawn graph outline where they only need to fill in the bars. Use "Sentence Starters" for the reflection (e.g., "The blue M&Ms were eaten quickly because...").
• Extension (Advanced Learners): Introduce the concept of Natural Selection. Ask them to calculate the percentage of each color that survived. Have them predict what would happen if the predator's "beak" changed (e.g., using a spoon instead of fingers).
• Environment Note: If doing this in a classroom, students can work in pairs, with one being the "timer" and one being the "predator," then switching roles with a new habitat paper.

Assessment

• Formative: Observation during the M&M activity. Does the student understand that the harder-to-see M&Ms are the ones they are leaving behind?
• Summative: Evaluation of the bar graph for accuracy and the reflection paragraph for the correct use of the terms "camouflage" and "survival."