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Directions: ANSWER USING COMPLETE SENTENCES! Use the information you have been given to answer questions about: The Digestive System
Level#1
The mouth is the place where digestion begins. Food is broken down into smaller pieces by the teeth. Breaking, crushing, and mashing food are forms of mechanical digestion.
1. What begins in the mouth?
2. What do we use to break food down into smaller pieces in the mouth?
3. How do we mechanically digest food in the mouth?
Level#2
The mouth is the place where digestion begins. Food is broken down into smaller pieces by the teeth. Breaking, crushing, and mashing food are forms of mechanical digestion. An enzyme is a substance that changes the rate of a chemical reaction. When a chemical reaction happens in the digestive system, the process is called chemical digestion.
1. What begins in the mouth?
2. What do we use to break food down into smaller pieces in the mouth?
3. How do we mechanically digest food in the mouth?
4. What needs to happen for the process of chemical digestion to go on?
Level#3
The mouth is the place where digestion begins. Food is broken down into smaller pieces by the teeth. Breaking, crushing, and mashing food are forms of mechanical digestion. An enzyme is a substance that changes the rate of a chemical reaction. When a chemical reaction happens in the digestive system, the process is called chemical digestion. Teeth are covered in a hard material called enamel. They also have roots. The roots contain nerves and blood vessels. Humans have four types of teeth; canines, incisors, premolars, and molars.
1. What begins in the mouth?
2. What do we use to break food down into smaller pieces in out mouth?
3. How do we mechanically digest food in the mouth?
4. When does the process of chemical digestion occur?
5. What are contained in the roots of human teeth?
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