Student’s page OBSERVATIONS/QUESTIONS 1.   Where was the air pressure the greatest, inside or outside?  Explain why this is. 2.   What happened to the straw when the air pressure increased?  Why? 3.   What happened to the straw when the air pressure decreased?  Why? 4.   What happened to the straw when the air pressure decreased?  Why?   5.   What factors affected your barometer data?   6.   Research hurricanes and explain how the atmospheric pressure determines the strength of a hurricane.   CONCLUSIONS:   Explain in your own words what a barometer is and how it works.  Next, explain how atmospheric pressure is used to estimate hurricane wind speeds.