Inside the Human Body

Lesson 5
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ELA

Unit 6

2nd Grade

Lesson 5 of 19

Objective


Describe what happens once food enters your mouth by describing the connection between a series of scientific ideas or concepts.

Readings and Materials


  • Book: First Human Body Encyclopedia  pp. 86 – 87

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Target Task


Discussion & Writing Prompt

Describe what happens once food enters your mouth. Make sure to use the words “teeth,” “saliva,” “tongue,” “enzymes,” “esophagus,” and “stomach.”

Sample Response

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Key Questions


  • The author says by the time your food reaches your stomach, it is unrecognizable. What does it mean if something is unrecognizable? Why is the food unrecognizable?

  • Describe the surface of the tongue. Why is it that way?

  • What does the author teach about digestion in the section "Mouth Watering”?

  • What is swallowing? What does it mean that swallowing is a reflex action?

  • Why do stomachs have a stretchy wall? What happens in the stomach?

  • What is the esophagus? Why is it important?

  • How do the illustrations/photographs and diagrams on pages 86 and 87 help a reader better understand the different parts of digestion?

Vocabulary


chemical

n.

a substance that cannot be broken down without changing it into something else

swallow

v.

to cause food to go from the mouth to the stomach

saliva

n.

liquid in your mouth that moistens food to make it easier to chew and swallow

enzymes

n.

a substance that speeds up the breakdown of food molecules

Notes


  • There is not a lot of text on this day. The key is for students to really be able to explain the cause and effect between different steps of the digestive process.

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Common Core Standards


  • RI.2.3 — Describe the connection between a series of historical events, scientific ideas or concepts, or steps in technical procedures in a text.
  • RI.2.7 — Explain how specific images (e.g., a diagram showing how a machine works) contribute to and clarify a text.

Supporting Standards

L.2.4
L.2.4.b
L.2.6
RF.2.3
RF.2.4
RI.2.4
RI.2.5
RI.2.10
SL.2.1
SL.2.2

Next

Describe what happens after food leaves the stomach by describing the connection between a series of scientific ideas or concepts.

Lesson 6
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