Rheo4Kids (RVF 2025)
Organizers
Mônica Naccache (PUC Rio, Brazil)
Priscilla Varges (PUC Rio, Brazil)
Summary
Rheo4Kids is an outreach and education initiative designed to introduce rheology and soft-matter concepts to children and teenagers through playful, hands-on activities. The project is led by Mônica Naccache (Project Lead) and coordinated by Priscilla Varges (Project Coordinator), with team members Eliana Marín, Lorena Moraes, Tiphane Figueira, Vanessa Picoli, and Matheus Xavier. The project was created from the perspective that rheology is everywhere in daily life (such as foods, cosmetics, household products, natural phenomena), and that simple experiments can spark curiosity about science and engineering while developing critical thinking skills. Rheo4Kids aims to bridge the gap between advanced rheology research and the general public, particularly young students, by translating fundamental ideas such as viscosity, elasticity, yield stress, and thixotropy into accessible demonstrations. The core activities include interactive classroom visits and/or lab visits led by a team of volunteer researchers and students. Typical sessions combine short storytelling-style explanations with experiments that students can perform or observe safely: comparing Newtonian and non-Newtonian fluids (water, syrup/honey, ketchup), creating and characterizing slime-like materials, exploring shear-thinning behavior, and observing time-dependent effects in everyday materials. Whenever possible, the sessions emphasize scientific method and connect the experiments to real-world applications in energy, environment, health, and manufacturing. Rheo4Kids also develops reusable educational materials (short guides, worksheets, and simple measurement activities) so that teachers can replicate experiments after the visit. The project encourages near-peer mentoring by involving undergraduate and graduate students as facilitators, strengthening their communication skills while expanding the outreach capacity. Overall, Rheo4Kids promotes early STEM engagement, science communication, and broader awareness of rheology as a key discipline in modern technology.
Rheo4Kids-RVF
Rheo4Kids contributed to the Society of Rheology’s mission by expanding the public understanding of rheology and strengthening the pipeline of future scientists and engineers. The project delivered engaging, age-appropriate outreach activities that translate core rheological concepts into tangible experiences, helping students connect classroom science to real materials and technologies. A key outcome was increased student participation and curiosity during sessions, especially when they could “predict and test” material behavior (e.g., why ketchup flows after shaking, why slime stretches but also breaks, or why some fluids appear to become thinner under motion). The program also produced shareable, reusable educational content that can be replicated by teachers and adapted for different ages, extending the impact beyond the live sessions. In addition, Rheo4Kids provided valuable training in science communication for the student volunteers and early-career researchers involved, improving their ability to explain complex concepts clearly to non-specialists, a core element of broader impacts in scientific communities. By bringing rheology to schools in an accessible, low-cost format, Rheo4Kids reinforces the visibility of rheology as an enabling science across multiple sectors (food, cosmetics, energy, environment) and strengthens community engagement with the discipline. The project’s structure is scalable and can be replicated by other rheology groups internationally.
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