Seth Rojello

This engaging activity introduces students to the critical role of buffers in maintaining homeostasis. Using butterfly pea flower tea as a natural pH indicator, citric acid as an acid source, and baking soda solution as a buffer, students investigate how biological systems resist drastic pH changes. Students will record data, construct graphs, and connect their results to real-world biological systems such as blood pH regulation, lactic acid buildup during exercise, and ocean acidification. Stan

Challenge your students to think beyond memorization with this rigorous and engaging biology activity that redefines what it means to be alive. Perfect for high school or honors biology, this resource combines molecular biology, cell theory, biochemistry, and evolutionary theory to help students apply scientific reasoning to real-world and theoretical examples like viruses, fire, robots, and synthetic cells. Standards Alignment: NGSS HS-LS1-1: Structure and Function NGSS HS-LS1-2: Systems of Spe

This engaging and standards-aligned AP Biology resource dives deep into the science of biodiversity and how we quantify it. Students explore and compare four major biodiversity indices—Simpson’s Diversity Index, Shannon-Weiner Index, Species Richness, and Pielou’s Evenness—through scaffolded explanations, real-world data scenarios, and critical thinking prompts. It’s perfect for introducing ecological data analysis or enhancing your biodiversity or ecosystem unit. Standards Alignment: NGSS (High