2. Breathing through the wide straw may have caused the effects I explained in question 1 because jumping and walking was doing something witch made me active witch would make me breath faster and it breathing fast though the wide straw might have hurt because it was hard to do while covering my nose so I wouldn't cheat.
3. Breathing through the thin straw affected me way more because the thin straw was like 3 or 4 times skinnier then the wide straw and it was almost impossible to breath through that thing!
4. I think we were asked to breath through the thin straw for only 20 seconds compared to 1 minute of breathing through the wide straw so you don't pass out!
5. our breathing changes of gets faster the more active we get because our heart starts to pup faster witch sometimes causes us to breath faster as we get active too.