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Unit 1 of 9

Unit 1: Breathing and respiration

HIA International — Grade 7 · 11 lessons · 16 quizzes

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1.1
GRADE 7 - Unit 1: Breathing and respiration20 min
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1.2
The human respiratory system20 min
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1.3
Gas exchange20 min
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1.4
Breathing20 min
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1.5
Respiration20 min
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1.6
Blood20 min
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1.7
The human respiratory system - Written assignment20 min
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1.8
Gas exchange - Written assignment20 min
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1.9
Breathing - Written assignment20 min
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1.10
Respiration - Written assignment20 min
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1.11
Blood - Written assignment20 min
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Practice for this unit