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Lesson Worksheet: The Steps of Digestion Science

In this worksheet, we will practice describing the function of the parts of the digestive system and modelling digestion in the mouth and stomach.


Look at this information.

Column 1 Column 2 Column 3
Muscles squeeze the food. The food is mixed with stomach acid. Nutrients enter the bloodstream.

Which columns show what happens in the stomach?

  • A1 and 3
  • B1 and 2
  • C2 and 3
  • D1, 2, and 3


Look at this picture of the large intestine.

What is absorbed in the large intestine?

  • AStomach acid
  • BBlood
  • CWater
  • DNutrients


Isabella and Liam are talking about teeth.

Who is correct?

  • AIsabella
  • BBoth of them
  • CLiam
  • DNeither of them


These children are predicting what will happen to food in the model of the stomach.

Who are correct?

  • AChloe and James
  • BChloe and Elizabeth
  • CJames and Elizabeth
  • DAll of them


Mia and Jackson are talking about the tongue.

Who is correct?

  • ANeither of them
  • BJackson
  • CBoth of them
  • DMia


When food leaves the stomach, it travels to the small intestine.

Fill in the blank: In the small intestine, nutrients from food are absorbed into the .

  • Abloodstream
  • Blarge intestine
  • Cliver
  • Dkidneys


Which of these pictures is matched correctly?

  • A
  • B
  • C
  • D


Look at this picture.

In the model of the digestive system, which part represents the stomach acid?

  • AThe plastic bag
  • BThe lemon juice
  • CThe crackers
  • DThe hand


In this model of the stomach, hands are used to squeeze the bag.

What do the hands represent?

  • AMixing food with the stomach acid
  • BThe muscles of the stomach
  • CBreaking food into smaller pieces
  • DAll of the answers are correct.


Look at this picture.

Fill in the blank: The esophagus is a tube that connects the mouth to the .

  • Asmall intestine
  • Bstomach
  • Clarge intestine

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