To solve the problem, we need to fill in the blanks using the words from the "Word Box" provided. Let's go through each sentence step by step:
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1. The _______ breaks down the food we eat.
- The digestive system is responsible for breaking down the food we eat into nutrients that can be absorbed by the body.
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Answer: digestive system
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2. Digestion begins in the _______ when you chew and swallow.
- Digestion starts in the mouth when you chew food and mix it with saliva.
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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.
- Saliva is a watery liquid produced in the mouth that helps moisten food and contains enzymes (like amylase) that start breaking down carbohydrates.
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Answer: saliva
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4. The _______ connects the bottom of your throat to your stomach.
- The esophagus is a muscular tube that transports food from the throat to the stomach.
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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 occurs. It has folds and villi that increase its surface area for efficient nutrient absorption.
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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 of the body, near the lowest rib. One of its primary functions is to filter toxins from the blood and produce bile, which aids in digestion.
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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:
Each part of the digestive system plays a specific role in breaking down food and absorbing nutrients. By understanding the function of each organ or component, we can correctly match the words to the sentences.
Final Answer Boxed:
\[
\boxed{\text{digestive system, mouth, saliva, esophagus, small intestine, liver}}
\]
Parent Tip: Review the logic above to help your child master the concept of fourth grade science worksheet.
