Teachers, save “GSJ Experiment (Sounds in a Noisy World)” to assign it to your class.

1. Read this page = https://www.sciencebuddies.org/science-fair-projects/project-ideas/Phys_p034/physics/extreme-sounds?utm_source=googlesciencejournallanding&utm_campaign=GSJ&utm_medium=referral#background 2. Watch this video = https://www.youtube.com/watch?v=-_YR1jnGyMY 3. Question: Do you breathe loudly? 4. Hypothesis: If my breathing is measured, then my breathing is ___________________ (loud or soft), because it's higher than 1o decibels 5. Experiment (Measure the sound level of your breathing) by subtracting the sound level of the room from your deep breathing 6. As a NOTE or VIDEO, answer the following questions: S.W.O.R.D. -- The summary of data from the experiment was...The experiment (did or did not) support the hypothesis, because...The relationship between the independent and dependent variables was...The reasons for my results are...Next time, I would improve the experiment by...and what I learned can be used to...