June 10th, 2020 Digestion Begins in the Mouth

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Level 1

Name:

Date:

Subject: Digestion: What begins to happen to the food you place in your mouth?

HOMEWORK

Directions: Use the information you have been given to answer questions about: What begins to happen to the food that you place in your mouth? Write your answers in complete sentences!

 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 our mouth?

2. What do we use to break food down into smaller pieces in our mouth?

3. How do we mechanically digest food in our mouth?

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Level 2

Name:          

Date:

Directions: WRITE YOUR ANSWERS IN COMPLETE SENTENCES! 

                                                                  Homework

When we place food in our mouths and chew it we are beginning the job of digestion. Digestion begins in the mouth by breaking the food down into smaller pieces. Our teeth do the job of breaking, crushing, and mashing our food and are all forms of mechanical digestion. The process of digestion is helped along because there are chemicals in our saliva called enzymes. Enzymes change the rate of a chemical reaction. When a chemical reaction happens in the digestive system, the process is called chemical digestion.

1. Where does digestion begin?

2. What are the two types of digestion?

3. What can change the rate of a chemical reaction?

Parent's Signature: _______________________________

Level 3

Name:

Date:

Subject: Digestion: What begins to happen to the food you place in your mouth?

HOMEWORK

Directions: Use the information you have been given to answer questions about: What begins to happen to the food that you place in your mouth? Write your answers in complete sentences!

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; canine, incisors, premolars, and molars.

1. What begins in the mouth?

2. What do we use to break food down into smaller pieces in our mouth?

3. How do we mechanically digest food in our mouth?

4. When does the process of chemical digestion occur?

5. What are contained in the roots of human teeth?