This Grade 4 Science worksheet traces the digestion path from the mouth through the esophagus, stomach, small intestine, and large intestine. Students review how chewing, saliva, stomach acid, enzymes, and villi work together to break down food and absorb nutrients. Through fill-in-the-blank and matching activities, Grade 4 learners build a clear, ordered picture of how the digestive system turns food into energy and removes leftover waste from the body.
Style:
Body Systems and Senses
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Digestion begins in the mouth where teeth chew food and saliva starts breaking it down.
2. Food travels from the mouth down a long tube called the esophagus to reach the stomach.
3. The stomach mixes food with strong acids and enzymes to break it into a thick liquid.
4. Most nutrients are absorbed in the small intestine through tiny finger-like structures called villi.
5. The large intestine absorbs water from leftover food before waste leaves the body.
6. The correct order after the stomach is small intestine, then large intestine.
7. Saliva in the mouth contains enzymes that help break down starches in food.
8. Strong acid in the stomach helps kill harmful bacteria that may be in food.
9. Waste finally leaves the body after passing through the large intestine.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Mouth
→ Chews food and adds saliva
Tube that pushes food to the stomach
Esophagus
→ Tube that pushes food to the stomach
Chews food and adds saliva
Stomach
→ Mixes food with acid and enzymes
Absorbs nutrients into the blood
Small intestine
→ Absorbs nutrients into the blood
Mixes food with acid and enzymes
Body Systems and Senses
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) Digestion begins in the mouth where teeth chew food and saliva starts breaking it down.
2) Food travels from the mouth down a long tube called the esophagus to reach the stomach.
3) The stomach mixes food with strong acids and enzymes to break it into a thick liquid.
4) Most nutrients are absorbed in the small intestine through tiny finger-like structures called villi.
5) The large intestine absorbs water from leftover food before waste leaves the body.
6) The correct order after the stomach is small intestine, then large intestine.
7) Saliva in the mouth contains enzymes that help break down starches in food.
8) Strong acid in the stomach helps kill harmful bacteria that may be in food.
9) Waste finally leaves the body after passing through the large intestine.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
Mouth
→ Chews food and adds saliva
Tube that pushes food to the stomach
Esophagus
→ Tube that pushes food to the stomach
Chews food and adds saliva
Stomach
→ Mixes food with acid and enzymes
Absorbs nutrients into the blood
Small intestine
→ Absorbs nutrients into the blood
Mixes food with acid and enzymes
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10 Questions
10-15 minutes
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