Respiratory System

FOCUS QUESTION* (Big Idea)

What is the function of the respiratory system?

 

PREDICTION/ HYPOTHESIS*

  If you’re moving a lot, then you with take more breaths.                                                                                   If you don’t move a lot, then you will take fewer breaths.                                                                                   If you take more breaths, then you’re getting more oxygen

 

PLANNING  

First count resting breaths and record what’s happening on inhale and exhale (with diaphragm and chest).

Then count breaths after walking and record what’s happening on inhale and exhale (diaphragm and chest).

Last count breaths after running and record what’s happening (diaphragm and chest).

Materials: stopwatch, smartboard, students, science notebooks

 

DATA

	At Rest	Walking	Running
Number of Breaths

	Diaphragm (up or down)	Chest (in or out?)
Inhale
Exhale

 

CLAIMS AND EVIDENCE*

You take more breaths when increase activity, because when we ran we took more breaths.

I had claimed that when you breathe more then your body gets more oxygen because you inhale more oxygen.

I know this to be true because I observed after I had ran in place I took more breaths and my diaphragm went up and I took more breaths.

I found that when you move less, you breath less more. I found this to be true because the number of resting breaths was less than the number of walking or running breaths

 

CONCLUSION/REFLECTION*

The function of the respiratory system is to deliver oxygen to your body.

In this investigation we discovered that the more you move the more breaths you take and the more oxygen your body receives.

This reminds me of the investigation we did about the circulatory system, because when we increased our level of activity our heart rate increased

 

**QUESTIONS:  

 What happens if you hold your breath while you run?

Why can’t you breathe under water, if there is oxygen in the water?

Can you breathe without lungs?