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Student participation in a coastal water quality citizen science project and its contribution to the conceptual and procedural learning of chemistry

Student participation in a coastal water quality citizen science project and its contribution to the conceptual and procedural learning of chemistry
Learning Objets
Summary
The study by J. L. Araújo examines how a year-long citizen science initiative—PVC: Perceiving the Value of Chemistry—engaged 442 Portuguese middle school students and 9 chemistry teachers in monitoring coastal water quality and detecting microplastics. Through hands-on analysis of physicochemical parameters (such as pH, turbidity, salinity, nitrate/nitrite levels, and dissolved oxygen) and identification of plastic contaminants, students not only deepened their conceptual understanding of chemistry topics like polymer types, formation, and structure, but also developed procedural skills in laboratory techniques including sieving, filtration, and crystallization. Post-project assessments showed strong knowledge retention months later, while teachers reported notable gains in students’ critical thinking, argumentation, communication, and digital skills, underscoring the value of integrating real-world environmental research into formal chemistry education.

Full article citation: Araújo, J. L., Morais, C., & Paiva, J. C. (2022). Student participation in a coastal water quality citizen science project and its contribution to the conceptual and procedural learning of chemistry. Chemistry Education Research and Practice, 23(1), 100–112. https://doi.org/10.1039/D1RP00190F
Learning Goals/Student Objectives
To reinforce chemistry concepts already learned (material composition, qualitative and quantitative composition of solutions, temperature, use of laboratory equipment and techniques, and appropriate safety procedures) and introduce additional concepts (turbidity, dissolved oxygen, salinity, polymers, acidity, and colorimetric tests) by exploring the quality of coastal waters and their contamination by microplastics.
Object Type
Laboratory experiment
Activities/Technology (e.g., in-class activities, online games, hands-on activities/manipulatives, outreach, virtual tools, etc.)
Audience
Middle School
High School (Secondary School)
Common pedagogies covered
Context-based learning
Hands-on learning
Green Chemistry Principles
Waste Prevention
Designing Safer Chemicals
U.N. Sustainable Development Goals (SDGs)
Clean Water and Sanitation
Life Below Water
Safety Precautions, Hazards, and Risk Assessment
n/a
NGSS Standards, if applicable
n/a

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