Purpose
Students investigate the essential question, “How can we grow crystals and explain the science behind how they form?” Teams research focused questions, plan a fair test, vary one environmental condition, record observations, and use evidence to explain results while distinguishing crystal formation from organism growth. Before-and-after reflection circles help students compare their understanding and describe how their communication, problem-solving, and teamwork changed. The project culminates in a Crystal Growth Science Showcase where students present their crystals, tested variables, evidence-based explanations, and new questions.
Learning goals
Students will investigate the essential question by researching crystal formation and designing a fair test of one environmental variable. They will record observations, analyze evidence, and explain how crystals grew while distinguishing nonliving crystal growth from how environmental and genetic factors influence organism growth. Students will collaborate through shared decisions and discussion, use peer feedback to refine their reasoning, and generate focused follow-up questions from multiple sources. They will compare their initial and final understanding and teamwork in reflection circles, then present their crystals, tested variable, evidence, and conclusions at a Crystal Growth Science Showcase.
Products
Teams will create a short research brief from several sources, a self-generated question, and a fair-test plan addressing, “How can we grow crystals and explain the science behind how they form?” They will maintain a shared observation log with measurements, sketches, photographs, variable changes, and evidence, then develop a scientific explanation that distinguishes crystal formation from organism growth influenced by environmental and genetic factors. Before-and-after reflection-circle notes will capture changes in scientific understanding, teamwork, feedback use, and new questions. The final Crystal Growth Science Showcase will feature each team’s crystals, tested variables, evidence-based explanation, and collaborative presentation.
Launch
Begin with a silent gallery walk featuring crystal samples, magnified images, and time-lapse videos; students record observations and questions without touching or tasting materials. Hold a reflection circle to share prior knowledge, then introduce the essential question: “How can we grow crystals and explain the science behind how they form?” Teams sort questions, compare crystal formation with organism growth, and choose a testable variable to investigate through a fair test, observations, and research from several sources. Preview the Crystal Growth Science Showcase, where teams will present their crystals and evidence-based explanations, followed by a final reflection circle about learning and teamwork.
Exhibition
Host a Crystal Growth Science Showcase where teams display sealed, labeled crystals, observation records, and fair-test models showing the variable they changed and controlled. Students answer “How can we grow crystals and explain the science behind how they form?” using evidence from their investigation and several research sources, then identify a new question for further study. Each team member presents, listens to visitors’ questions, and explains how crystal growth differs from organism growth influenced by environmental and genetic factors. Begin and end with reflection circles so students compare their prior and current understanding and describe how feedback, shared decisions, and teamwork shaped their work.
