7th Grade Science Guide

7.3: Structures & Function of Life 3 Dimensions & Progressions

Unit 4

STANDARD ● 7.3.3 Construct an explanation using evidence to explain how body systems have various levels of organization . Emphasize understanding that cells form tissues, tissues form organs, and organs form systems specialized for particular body functions. Examples could include relationships between the circulatory, excretory, digestive, respiratory, muscular, skeletal, and nervous systems. Specifc organ functions will be taught at the high school level. (MS-LS1-3)

CONCEPTS

SKILLS

● Body systems ● Levels of organization ● Cells

● Construct an explanation ● Use Evidence ● Explain

● Tissues ● organs ● Organ systems ● organisms

LEARNING PROGRESSIONS

● Cells work together to form tissues with specifc functions ● Tissues work together to form organs that provide specifc functions ● Organs and tissues work together to create organ systems which carry out complex functions ● The body is a system of interacting subsystems composed of groups of cells ● The body contains organs and organ systems that interact with each other to carry out all necessary functions for survival and growth

VOCABULARY ● Cell

● Excretory system ● Digestive system ● Respiratory system ● Muscular system ● Skeletal system

● Nervous system ● organism

● Tissue ● Organ ● Organ system ● Circulatory system

POSSIBLE PHENOMENA ● I can feel a difference in my pulse in my neck after I exercise. ● I often sweat during and after I exercise. ● A chicken foot does not have large muscles. ● My friend has a hard time breathing, she uses an inhaler

END OF UNIT COMPETENCY WITH LANGUAGE SUPPORTS ● I can show evidence that multiple organ systems work together to perform major functions in an