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THINK FAST!

THINK FAST!. By: Heather Eddy Amber Gerber Alison Eckas. Introduction. Ask yourself do teens have better reflexes than adults? Some say they have advantages over adults, and others are the opposite. Just sit back relax those muscles, and listen.

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THINK FAST!

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  1. THINK FAST! By: Heather Eddy Amber Gerber Alison Eckas

  2. Introduction • Ask yourself do teens have better reflexes than adults? • Some say they have advantages over adults, and others are the opposite. • Just sit back relax those muscles, and listen. • Our experiment is trying to test the reaction time of 2 different age groups.

  3. Hypothesis • Our hypothesis: • If you throw a ball at a teenage group then they will react faster than those of an older age group.

  4. Variables • Dependent-the reaction time • Independent- age group • Control - ball, distance, and speed of throw

  5. Subjects • We have 2 age groups, with a male and a female. • The younger age group consists of 2 people going to start their freshmen year at high school. • The older age group consists of 2 of our T.C.’s here at the program.

  6. Freshmen Subject 1 Grade: Freshmen Age: 13 Gender: Female Self Described Athleticisms: Very Athletic Amount Of Sleep: Average

  7. Freshmen Subject 2 Grade: Freshmen Age: 14 Gender: Male Self Described Athleticisms: Little Amount Of Sleep: Average

  8. T.C. Subject 3 Grade: T.C. Age: 20 Gender: Male Self Described Athleticisms: Very athletic Amount Of Sleep: Below Average

  9. T.C. Subject 4 Grade: T.C. Age: 23 Gender: Female Self Described Athleticisms: Little Amount Of Sleep: Below Average

  10. Background research • A reflex is an involuntary or automatic action, our bodies do this to respond to something. • These are things you don’t have to think about. • Reflexes protect our bodies from things that can harm it.

  11. Background Research (Cont.) • Blinking and sneezing are reflexes. • Raising your arm to block something • The lack of sleep can cause people to have different reactions than they would usually

  12. Cont. • Many things effect your reflexes. • Reflexes require 2 out of the 3 neurons • They need the sensory and the motor neuron. • Sensory neuron conducts nerve impulses along the afferent path to the central nervous system. • Motor neuron conducts nerve impulses along the efferent path from the integration center

  13. Previous Experience • We based this experiment on a lab that Alison did in school. • The lab was testing reaction time, using a ruler and dropping it, to see how fast you could catch it. • We took information and changed it up a bit to get this experiment.

  14. Materials • Tape Measure • Stop Watch • Squishy Ball

  15. Procedure • First get permission. • Measure the distance between thrower and the subject stand to 25ft. • Have subject 1 stand at the given distance turned the opposite way. • Throw the ball and say their name as you throw it. • Start the stop watch when the ball is thrown.

  16. Procedure cont. • Stop the stop watch when they show any type of reaction. • Make observations. • Record data from stop watch and observations. • Repeat for all subjects around the same time 3 times. • Repeat steps for all subjects.

  17. Observation • Freshmen Female. • Turned around quickly and caught ball twice. Attempted and missed 1 • Freshmen Male. • Turned head around ball hit him, turned fully around hit again, turned fully around and attempted to catch but missed.

  18. Observation Cont. • T.C. Female. • Turned around and missed ball completely twice. Turned around and try to catch but missed. Let hit her • T.C. Male • Turned around quickly and caught once standing straight and once in crouch position. Turned around and tried to catch but missed.

  19. Data Red=Missed Blue=Caught (In Seconds)

  20. Reflex times (in seconds)

  21. Results • Since younger kids have slower reflexes, this could be the cause of the age change in when you get your drivers license. • Reflexes are important because they could be the difference between life or death.

  22. Conclusion • Our hypothesis was incorrect. We thought that teenagers have better reflexes than adults. But it turns out the opposite. • Next time we could improve this by having more variables so that it would make the data more accurate. We did not take many variables into consideration. Multi-tasking.

  23. Conclusion (Cont.) • We could have subjects that have the same amount of sleep and about the same athletic ability. • We could also do it with the sun. day vs. night. We could get someone that has a better accuracy of throwing. • We could also next time get different age groups with more of a distance between them.

  24. Works Cited • http://kidshealth.org/kid/talk/ga/reflexes/html • http://csm.jmu.edu/biology/danie2jc/reflexes.htm

  25. Special Thanks To… • Mrs. Morgan • Mrs. Scott • Mrs. Traci • Participants • Our Teachers

  26. The End • Thank you • And have a great rest of the day.

  27. ?Questions?

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