Organization of Multicellular Organisms Interactive Simulation | Life Science | Grades 6–8

This Interactive Simulation has grades 6–8 Middle School Life Science students run a hands-on classroom model of Organization of Multicellular Organisms.

Driving question: "How do the respiratory, circulatory, nervous, and muscular subsystems interact dynamically to maintain cellular homeostasis when the human body transitions from rest to physical exercise?" Objective: Students will measure heart rate, breathing rate, and calculated cardiac output across five activity levels, model the sensory feedback loop between muscles and the brain, and construct an evidence-based argument for how body subsystems interact.

What's inside: objective and background, a materials list (Stopwatch or digital laboratory timer…; Pulse oximeter or manual radial pulse…; Metronome or step-test platform for…; Organ System Interaction Flowchart Mat…), an 8-step protocol, a data table, 4 analysis questions, and teacher notes.

Resource type: Interactive Simulation (.docx). Format: editable Microsoft Word lab handout with approximately 830 words (~5 pages).

Classroom use: a team investigation in a Middle School Life Science course. Grades 6–8.

Format note: These files are delivered in Microsoft Office formats (Word and/or PowerPoint). If you open a worksheet that includes tables in Apple Pages or another non-Microsoft app, table formatting may not display correctly. For best results, use Microsoft Word or PowerPoint (or upload the file to Google Docs). If you run into any formatting issues, contact us and we can send a PDF version.