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Age and Smell: Exploring How Different Ages Impact Olfactory Perception

This science fair project investigates whether age affects the sense of smell. Hypothesizing that older individuals may struggle more with identifying scents due to the natural decline of the senses with age, I conducted experiments with various participants of different ages. Each person smelled different foods while blindfolded, and the results were surprising. Contrary to my hypothesis, older participants performed well, prompting further questions about the relationship between aging and olfactory capabilities.

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Age and Smell: Exploring How Different Ages Impact Olfactory Perception

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Presentation Transcript

  1. Science Fair By: Tori Buckley

  2. Question: • Do people of different ages have a different sense of smell?

  3. Why did I pick this question? • I picked this question because has people get older they loose their hearing and their eyesight so I was wondering if they also lost their sense of smell.

  4. Hypothesis • I think older people will have a harder time trying to see what they are smelling because you loose more senses has you get older.

  5. Explanation of my hypothesis • I think that older people will have a harder time because of ageing and younger people are more new.

  6. Interesting facts from research • The ability to smell and taste breaks down with age. • 3 year olds have essentially the same likes and dislikes as adults in smell. • Women can tell the difference in smell better than men • Women are significantly more likely than men to suffer from cacosmia ( feeling ill from the smell of common environmental chemicals such as paint and perfume.) • The little hairs in your nose are called cilia. • To know what you are smelling there is a thing called the olfactory bulb there the smells are recognized because each smell molecule fits into a nerve cell like a lock and key.

  7. Material List • Plastic cups • Blindfold • Strawberry jam • Peanut butter • Onions • Peaches • Dog food • Hershey's chocolate syrup • Pens • Papers

  8. Procedure • Put one of each food in four cups • Blindfold person • Have blindfolded person smell the food and guess what the food is. • Record answers • Repeat steps 1-4 until all foods are used • Share if they have the right answers • Repeat all steps until all variables have smelled each food • Record data • Find conclusion

  9. Variables • Grandma Joan age 67 • Ashley age 46 • Caley age 17 • Savannah age 10

  10. Observations from experiments • People all got most/all the answers right. • The easiest thing to guess was Peanut butter • The hardest thing to guess what the strawberry jam

  11. Data • Grandma: Guessed all correct except strawberry jam she guessed grape jelly • Ashley: Guessed all of them correctly • Caley: Guessed all of them correctly • Savannah: Guessed all of them correctly except onions she didn’t know.

  12. Analysis • My analysis was that it did test my hypothesis because I thought I was right but I was not because my oldest variable got most of them right

  13. Conclusion • My hypothesis are wrong because my grandmother got all of them right except one and she was very close. My questions now are: How come other senses go bad but sense of smell stays the same?

  14. Resources • www.sageke.sciencemag.org • www.nidcid.nih.gov • www.sirc.org • www.library.think.org • www.timescom

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