Cell Organization in the Human Body
- Understand the different levels of organization (cell, tissue, organ, system) in an organism.
- List examples of cells being organized into tissues, organs, and systems in the human body (e.g. lung cell, lung tissue, the lung, respiratory system).
- Understand how the human respiratory system works, and how it interacts with the human circulatory system.
The human body is complex! In this lesson, it is broken down into smaller, manageable parts. Students will build a lung model and discover how different parts of the respiratory system work together to make breathing possible. Next, they will discuss how this system works together with other systems in the body so oxygen can reach every cell of the body. While students perform these explorations, they will realize that multicellular organisms consist of systems, which are a collection of organs and tissues, and all of these are made of cells.
Remote Learning: This lesson plan can be adapted to work remotely. The Engage section of the lesson can be done over a video call. Then, students can make the model individually and independently using the Make a More Advanced Lung Model video as a guide. Allow the students to make a model with only one lung instead of two as joining two straws can be tricky. A set of materials can be prepared in advance, or, if students gather the materials themselves, ask for adult supervision while cutting the hard plastic bottle. Students can use the Student Worksheet to complete their exploration independently and can then share their observations and thoughts with each other, virtually. You can also use the Simple Lung Model video to help students understand the breathing mechanism shown in the model. End the lesson with a discussion over a video call during the Reflect section.
NGSS AlignmentThis lesson helps students prepare for these Next Generation Science Standards Performance Expectations:
Per group of 2–4 students:
Teacher or another adult:
1 hour, 15 minutes
1 hour, 15 minutes
Area of Science
Human Biology & Health
Organization of cells into tissue, organ, system, and organism
Sabine De Brabandere, PhD, Science Buddies
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