Ingestion
Ingestion is the process of taking food and drink into the body through the mouth. It is the first step in the process of digestion, where food is broken down and nutrients are absorbed into the body.
Process of Ingestion
- Mouth: Food is taken into the mouth and chewed by the teeth to break it down into smaller pieces.
- Saliva: Saliva, produced by the salivary glands, helps to moisten the food and contains enzymes that begin the process of breaking down carbohydrates.
- Swallowing: The chewed food is then swallowed and moves down the esophagus to the stomach.
Study Guide
Here are some key points to remember about ingestion:
- Definition: Ingestion is the process of taking food and drink into the body through the mouth.
- Importance: It is the first step in the process of digestion, where food is broken down and nutrients are absorbed into the body.
- Process: Ingestion involves chewing food in the mouth, moistening it with saliva, and swallowing it to move it into the stomach.
- Role of Saliva: Saliva contains enzymes that begin the process of breaking down carbohydrates in the food.
Understanding the process of ingestion is important for understanding how our bodies obtain the nutrients they need from the food we eat.
.◂Science Worksheets and Study Guides Third Grade. Relationships among living things
Study Guide
Relationships among living things 
Activity Lesson
Relationships Among Living Things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Vocabulary/Answer key
Relationships among living things Vocabulary/Answer key
Relationships among living things
Activity LessonWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
LIFE SCIENCE
From Molecules to Organisms: Structures and Processes
Create representations to explain the unique and diverse life cycles of organisms other than humans (e.g., flowering plants, frogs, butterflies), including commonalities such as birth, growth, reproduction, and death.
Unity and Diversity
Construct an argument from evidence to explain the likelihood of an organism’s ability to survive when compared to the resources in a certain habitat (e.g., freshwater organisms survive well, less well, or not at all in saltwater; desert organisms survive well, less well, or not at all in woodlands).
Create models that illustrate how organisms and their habitats make up a system in which the parts depend on each other.