SC15.7.4

Science (2015) Grade(s): 7

Developing and Using Models

Systems and System Models

Students know:

Biological hierarchy (cells, tissues, organs, organ systems, organisms).
Specialized cells make up specialized tissues; specialized tissues make up organs (e.g., the heart contains muscle, connective, and epithelial tissues that allow the heart to receive and pump blood).
Major organs of the body systems (e.g., circulatory, digestive, respiratory, muscular, skeletal, nervous).
Functions of the body systems.
Interacting organ systems are involved in performing specific body functions.

Students are able to:

Construct a model or representation that demonstrates how interacting organs and systems accomplish functions.
Describe the relationships between components of the model.
Use observations from the model to provide causal accounts for events and make predictions for events by constructing explanations.

Students understand that:

The body is a system of multiple interacting subsystems (organ systems).
Different organs work together to form organ systems that carry out complex functions (e.g., the heart and blood vessels work together as the circulatory system).
The interaction of organ systems are needed for survival, growth, and development of an organism.