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Biology, 26.10.2020 03:30 angie7665

Type your response in the box. Watch this video about the stresses on the body caused by carrying heavy backpacks. Then design an
investigation about the effect of carrying backpacks on students' health using these steps of the scientific method:
• make observations or inferences
• ask questions
• construct hypotheses and make predictions
• test hypotheses
• analyze results
Your investigation can address any question you have about backpacks and student's health that you choose.
PLATO helppp

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Answers: 2

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Type your response in the box. Watch this video about the stresses on the body caused by carrying h...

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