======Exploding Seed Pod Model====== **Materials: **{{$demo.materials_description}}\\ **Difficulty: **{{$demo.difficulty_description}}\\ **Safety: **{{$demo.safety_description}}\\ \\ **Categories:** {{$demo.categories}} \\ **Alternative titles:** Seed Dispersal Balloon Experiment ====Summary==== {{$demo.summary}} ====Procedure==== - Place a balloon over the end of a funnel. - Pour parakeet bird seed or confetti into the funnel to fill the balloon. - Tie off the balloon to seal it. - Place butcher paper or a plastic tablecloth on the ground outdoors to catch the seeds. - Hold the balloon outward and pop it with a sharp pencil. - Observe how the seeds scatter and record the distances traveled. - Have students draw and label their results, including measurements of dispersal. ====Links==== Seed Dispersal Experiment #1: Blast Zone - Green Ninja Academy: {{youtube>wr_9VzN4po4?}}\\ 📄 Seed Dispersal Activity: Build an Exploding Seed Pod - Around the Kampfire Teaching: [[https://aroundthekampfire.com/seed-dispersal-activity-build-exploding-seed-pod-for-kids/]]\\ ====Variations==== * Compare the dispersal distance using different balloon sizes. * Try different types of seeds (without clogging the funnel). * Pop balloons at different angles to simulate pods bursting in different directions. * Have older students calculate the area and perimeter of seed dispersal. ====Safety Precautions==== * Safety glasses recommended when popping balloons. * Balloons may cause loud pops—warn students in advance. * Use sharp pencils carefully to avoid injuries. * Ensure activity is done outdoors or with a protective covering indoors. * Be cautious with small seeds and balloon pieces around young children (choking hazard). ====Questions to Consider==== * Why do some plants use exploding seed pods for dispersal? (To spread seeds farther from the parent plant, reducing competition for resources.) * How does this method compare with wind or animal seed dispersal? (Exploding pods send seeds quickly in multiple directions, while wind and animals transport seeds more gradually or selectively.) * What advantage do smaller seeds have in this type of dispersal? (They are lighter and travel farther when launched.)