Class 3 EVS Digestive System Worksheet
Section A: Multiple Choice Questions
1. Digestion starts in the:
a) Stomach
b) Esophagus
c) Mouth
d) Liver
2. The organ that stores bile is:
a) Liver
b) Stomach
c) Gall bladder
d) Pancreas
3. Which part of the digestive system absorbs water?
a) Small intestine
b) Stomach
c) Large intestine
d) Esophagus
4. The juice secreted by the pancreas helps to digest:
a) Water
b) Proteins
c) Carbohydrates
d) Vitamins
5. Food reaches the stomach from the mouth through the:
a) Liver
b) Pancreas
c) Esophagus
d) Tongue
Section B: Fill in the blanks
1. The __________ helps to chew and grind food.
2. __________ are the taste buds found on the tongue.
3. The __________ secretes gastric juices to break down food in the stomach.
4. The undigested food is passed out of the body through the __________.
5. The __________ intestine is about 18 feet long.
Section C: Match the following
| A | B |
| ——————- | ————————— |
| 1. Tongue | a. Helps digestion of carbs |
| 2. Saliva | b. Muscular tube from mouth |
| 3. Pancreas | c. Taste buds |
| 4. Esophagus | d. Water absorption |
| 5. Large Intestine | e. Softens food |
Write your answers as:
1 – ___, 2 – ___, 3 – ___, 4 – ___, 5 – ___
Section D: Short Answer Questions
1. What is digestion?
2. Write two functions of the stomach.
3. Why is the small intestine important in digestion?
4. Mention any three healthy eating habits.
5. What is the role of the liver in digestion?
Section E: Long Answer Questions
1. Describe the journey of food through the digestive system starting from the mouth to the anus.
2. Explain how the small intestine helps in absorption of nutrients.
3. Write five points on how we can maintain healthy eating habits and why they are important.
Answer Key: Digestive System Worksheet
Section A: Multiple Choice Questions
1. c) Mouth
2. c) Gall bladder
3. c) Large intestine
4. c) Carbohydrates
5. c) Esophagus
Section B: Fill in the blanks
6. Teeth
7. Sweet, sour, salty and bitter
8. Stomach
9. Anus
10. Small
Section C: Match the following
11 – c (Tongue – Taste buds)
12 – e (Saliva – Softens food)
13 – a (Pancreas – Helps digestion of carbs)
14 – b (Esophagus – Muscular tube from mouth)
15 – d (Large Intestine – Water absorption)
Section D: Short Answer Questions
1. What is digestion?
Digestion is the process of breaking down food into smaller particles that can be absorbed by the body for energy.
2. Two functions of the stomach:
Breaks down food using gastric juices.
Stores food for several hours.
3. Why is the small intestine important in digestion?
It mixes food with digestive juices from pancreas and liver, breaks food into fine particles, and absorbs nutrients into the blood.
4. Three healthy eating habits:
Wash hands before eating.
Eat lots of fruits and vegetables.
Chew slowly for easy digestion.
5. Role of the liver in digestion:
The liver produces bile juice that helps in digestion of fats. The bile is stored in the gall bladder and released into the small intestine.
Section E: Long Answer Questions
6. Describe the journey of food through the digestive system:
Digestion starts in the mouth, where teeth chew the food and saliva softens it.
The tongue helps mix food and push it to the esophagus, which carries it to the stomach.
In the stomach, food is broken down further with gastric juices.
Then it enters the small intestine, where it mixes with juices from pancreas and liver. Nutrients are absorbed into the blood.
Undigested food passes to the large intestine, where water is absorbed.
Waste is finally removed through the anus.
7. Explain how the small intestine helps in absorption of nutrients:
The small intestine is long and lined with tiny finger-like structures called villi.
These villi absorb nutrients from digested food.
It also mixes food with digestive juices from the pancreas and bile from the liver to complete digestion.
8. Five healthy eating habits and why they are important:
Wash hands before eating – prevents germs and illness.
Eat fruits and vegetables – provide vitamins and fiber.
Avoid junk food – keeps body fit and reduces health problems.
Chew slowly – helps in proper digestion.
Drink enough water – keeps body hydrated and aids digestion.
