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my Notes
Notice &
Notice &
Note
Note
Contrasts and
Contrasts and
Contradictions
Contradictions

Prepare to Read

GENRE STUDY Informational texts give facts and
examples about a topic.

• Authors of informational texts often organize their ideas
using headings and subheadings to tell readers what

each section of text is about.
• Science texts include specific words about the topic.

• Informational texts often include visuals, such as charts,
diagrams, graphs, and maps.

SET A PURPOSE Think about the title and genre of this
text. What do you know about the sense of sight? What do you

want to learn? Write your ideas below.

CRITICAL
VOCABULARY
luminous

transparent

reflect

illuminates

judge
Build Background:
The Sense of Sight

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