| Explore | Scarification weakens, opens, or alters the seed. Some seeds are impervious to water and gases, preventing or delaying germination. |
|---|---|
| Research Question | Does scarification improve germination rate? |
| Predictions | Using our "material" will scratch the seed making it grow faster. Scratching the seed can weaken the shell making it easier to sprout them. |
| Experimental Design | Rock, Plastic bags, Water, Peach seeds, Peas We'll have a control and we will change how long we scratch the seed and with what material. |
| Conclusion | Scarification did improve the germination rate of the peas but the non-scarified peas grew taller compared to the scarified peas. |
| Investigation Theme | WOS |
| Grade Level | High School Students (Grades 9,10,11,12) |
| Teacher Name | Hemamali Perera |
| School Name | Sierra Vista High School |
| Session | Fall 2021 |