Grade 9 Natural Sciences Summaries: Digestive System and Excretory System

Digestive System

A summary of the digestive system that includes: processes in the digestion of food, function of parts of the digestive system, organs and components involved in the digestion of food, the digestive tract, supporting organs, illnesses related to the digestive system, terminology sheet.

Excretory System

A summary of the excretory system that includes: processes like filtration, reabsorption, diffusion, excretion, components and functions of the excretory system, liquid waste pathway, health issues related to excretory system, terminology.