Let's solve this digestive system worksheet step by step using the
word box provided:
Word Box:
- large intestine
- esophagus
- anus
- liver
- digestive system
- mouth
- saliva
- small intestine
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Now, let’s go through each sentence and fill in the correct word from the word box.
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1. The ____________ breaks down the food we eat.
- This is a general statement about the entire process of breaking down food.
- The correct answer is:
digestive system
✔ Answer: *digestive system*
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2. Digestion begins in the ____________ when you chew and swallow.
- Chewing and swallowing happen in the mouth.
- So, digestion starts in the
mouth.
✔ Answer: *mouth*
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3. A watery liquid called ____________ makes the food wet and soft, and it has a chemical that helps digest the food.
- This describes
saliva, which is produced in the mouth and contains enzymes like amylase that begin breaking down food.
✔ Answer: *saliva*
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4. The ____________ connects the bottom of your throat to your stomach.
- The tube that carries food from the throat to the stomach is the
esophagus.
✔ Answer: *esophagus*
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5. The ____________ is a long narrow tube that has spongy walls that soak up nutrients from food.
- The
small intestine is where most nutrient absorption happens. It has villi (spongy walls) that absorb nutrients.
✔ Answer: *small intestine*
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6. The ____________ is on the right side of the body near the lowest rib. Its job is to clean the blood.
- The
liver is located on the right side under the ribs and plays a key role in filtering and cleaning the blood.
✔ Answer: *liver*
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✔ Final Answers:
1.
digestive system
2.
mouth
3.
saliva
4.
esophagus
5.
small intestine
6.
liver
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🔍 Explanation Summary:
- The
digestive system is the whole system responsible for breaking down food.
-
Mouth is where mechanical and chemical digestion start.
-
Saliva moistens food and contains enzymes for digestion.
-
Esophagus transports food from throat to stomach via peristalsis.
-
Small intestine absorbs nutrients into the bloodstream.
-
Liver detoxifies blood, produces bile, and helps metabolize nutrients.
These answers use only words from the word box and match the definitions given.
Parent Tip: Review the logic above to help your child master the concept of science worksheet grade 4.
