Grade 4 Science: Digestive System Quiz

What is the main theme of the poem recited at the beginning of the lesson?

• The process of digestion

• The structure of the digestive system

• The importance of eating healthy

• The role of enzymes in the body

What is the primary function of mechanical digestion?

• To chemically alter food

• To break down food into smaller pieces

• To absorb nutrients

• To produce digestive enzymes

Which enzyme starts the process of carbohydrate breakdown in the mouth?

• Pepsin

• Lipase

• Salivary amylase

• Trypsin

What type of teeth are used for biting and tearing food?

• Incisors

• Canines

• Premolars

• Molars

Which part of the tooth is visible and often brushed?

• Pulp

• Root canal

• Enamel

• Dentine

What is the role of the esophagus in the digestive system?

• To mix food with digestive juices

• To absorb nutrients

• To store food

• To transport food from the mouth to the stomach

Which organ is responsible for storing and mixing food with digestive juices?

• Large intestine

• Small intestine

• Stomach

• Esophagus

What is a common cause of diarrhea?

• Eating too slowly

• Excessive exercise

• Infection or stomach flu

• Lack of sleep

Which of the following is a tip to prevent belly aches?

• Avoid drinking water

• Eat large meals quickly

• Eat fiber-rich foods

• Skip breakfast

What is a symptom of appendicitis?

• Increased appetite

• Frequent urination

• Pain that moves to the right side of the belly

• Runny nose