Biology

Digestive system This lesson is designed for you to use the Internet to learn about the digestive system. Type in the following address: [] Follow the instructions on the sheet to answer the questions. Remember to only click where the sheet tells you to. 1. What is digestion?

2. Click on **Mouth and Teeth**. What is the purpose of the teeth in the digestive system?

3. What is **Saliva** used for and what helps it do it’s job?

4. Where does the food go next? 5. What is the purpose of the **tongue** in the digestive system?

6. Click on **Next** at the bottom. Name 2 ways food is broken down in the stomach.

7. How is the stomach protected?

8. Where does the food go next?

9. How long is it? 10. How does food move in the small intestine and what is this movement called?

11. What are **villi** and what do they do?

12. What is the last section of the digestive system called? 13. Click on **Next** at the bottom. Read the information and write down how each of the following three organs aid in digestion:
 * Pancreas:**


 * Liver:**


 * Gall Bladder:**