July 7th, 2017 The Odyssey by: Homer

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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 process begins in the mouth.






2. What are the three things that the teeth do to the food we eat?






3. What is one form of digestion that go on 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 are the three things that the teeth do to the food we eat so that we can begin to digest it?






2. What form of digestion is taking place in the mouth when food is being broken, crushed, and mashed?







3. What is going on in the mouth when the enzymes in saliva come into contact with food?







4. What is an enzyme?










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 is going on in the mouth when the teeth are breaking, crushing, and mashing the food we eat?






2. What is an enzyme?






3. What does the enzyme found in saliva begin the process of?






4. What are the teeth covered in that protect them from becoming damaged during chewing and eating?






5. What do the roots in teeth contain?






6. How many types of teeth do human beings have, and what are their names?








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