How Digestion Works

How Digestion Works

6th Grade · Science · 60 min· Ngss Ms-ls1-7

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Learning Objective

I can describe how the digestive system breaks down food into nutrients the body can use.

  • 1

    The four major tasks of the digestive system are ingestion, digestion, absorption, and elimination.

  • 2

    Saliva contains enzymes that start chemical digestion in the mouth, while teeth perform mechanical digestion.

  • 3

    The liver produces bile to help break down lipids, the gallbladder stores the bile, and the pancreas produces juices with digestive enzymes.