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7th grade Digestion and getting rid of waste worksheet

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Digestion and getting rid of waste

Grade 7 Science Worksheet

NameDate

Circle the best answer.

  1. Ari's food path reads: mouth → esophagus → ? → small intestine. What fills the blank?

    • Large intestine
    • Liver
    • Lungs
    • Stomach

  2. Bo's food path reads: stomach → ? → large intestine. What fills the blank?

    • Kidneys
    • Small intestine
    • Pancreas
    • Esophagus

  3. Esme's food path reads: mouth → ? → stomach → small intestine. What fills the blank?

    • Esophagus
    • Windpipe
    • Small intestine
    • Gallbladder

  4. Jun reads that the liver helps digest fats. Does food pass through the liver on its way to the intestines?

    • Yes: food goes from the stomach into the liver
    • No: the liver makes urine instead
    • No: bile flows in through ducts
    • Yes: food waits in the liver until bile is ready

  5. Kira studies the gallbladder, a small pouch under the liver. What is its job?

    • It takes in water from the leftover waste
    • It stores bile and squeezes it out at meals
    • It stores food between meals
    • It filters waste out of the blood

  6. Luz's pancreas makes a digestive juice during a meal of rice and beans. Where does the juice go?

    • Through ducts into the small intestine
    • Into the large intestine to take in water
    • Nowhere: the food comes to the pancreas
    • Into the kidneys to make urine

  7. Noah eats watermelon. After the small intestine, which organ takes in more water and makes the leftover waste solid?

    • The bladder
    • The liver
    • The large intestine
    • The stomach

  8. The small intestine's lining has millions of tiny finger-like villi. Why do the villi help Pia absorb nutrients from grapes?

    • They take in just water; the large intestine takes nutrients
    • They are not needed, as the stomach takes in most nutrients
    • They add surface, so more nutrients pass in
    • They grind the grapes like teeth

  9. Urine leaves one of Tala's kidneys. Where does it go next?

    • Into the large intestine with food leftovers
    • Back to the stomach
    • Down a ureter to the bladder
    • Up to the lungs to be breathed out

  10. Zee reads that the kidneys clean something all day long. What do they clean?

    • The bile from the liver
    • The food in the small intestine
    • The air in the lungs
    • The blood
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7th grade Digestion and getting rid of waste worksheet – printable
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About this worksheet

Digestion and getting rid of waste. Every version has 10 questions, and the answer key prints on the second page.

What your child will learn

  • I can name the organs food passes through, in order, and say what each one does.
  • I can tell the food tube from its helpers (liver, pancreas, gallbladder), which send juices in through ducts.
  • I can match each waste to its exit: carbon dioxide to the lungs, urine to the kidneys, food leftovers to the large intestine.

Standard: MS-LS1-3

Words to know

esophagus: The muscle tube from the mouth to the stomach

small intestine: Where digestion finishes and most nutrients pass into the blood

large intestine: Takes in water from leftovers; the waste then leaves the body

bile: A juice from the liver that helps digest fats

duct: A small tube that carries a juice into the intestine

villi: Tiny finger-like bumps that add surface to the small intestine

kidney: Organ that filters blood and makes urine from wastes and extra water

ureter / bladder: Tube from each kidney / the pouch that stores urine

Common mistakes

Your child thought food passes through the liver, pancreas or gallbladder. They are helpers beside the food tube: their juices flow in through small tubes called ducts.

Your child mixed up the two intestines. The small intestine comes first and absorbs most nutrients; the large intestine comes last and takes in water from what is left.

Your child thought the stomach finishes digestion and absorbs the food. The stomach starts breaking food down; the small intestine finishes the job and absorbs most nutrients.

Questions parents ask

What is the most common mistake with digestion and getting rid of waste?

Your child thought food passes through the liver, pancreas or gallbladder. They are helpers beside the food tube: their juices flow in through small tubes called ducts.

Are these 7th grade science worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

More grade 7 science

See all grade 7 science

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