PLease help..I have a science project that is due on wednesday for the sciene fair?

Question

I'am doing, "what is the different between a perfume & cologne.Which has the least concentration, and which last longer." Although i know all the answer to this question but i can't seem to find...how to do this project. First of all i need the "Purpose, Hypothesis,Procedure,Independe... variable,Dependent variable, the Controls are, Result, & the Conclusion." If you are willing to help, please answer these question because I'am having a hard time thinking of what i should do with perfume & cologne for my project, all i can think of is these kinds of question for my science fair. So please help me find some info, I've done some research myself as well but it seem not to work!

If you have any result or anything for me about this project that iam asking you right now, please notify me at [e-mail]

ill be glad to reply back as well

Answer 1

Purpose: To determine whether perfume is more concentrated, and consequently longer-lasting, than cologne.

Hypothesis: Perfume is more concentrated, and consequently longer-lasting, than cologne

Procedure:
- Purchase the same brand of cologne and perfume.
- Cut up a bunch of pieces of paper into strips - enough so that there are two strips for each person in your class. Best if you use two colours (like red for cologne, blue for perfume or something)
- On Monday morning before school, mix one ml of cologne with 5 ml of water. Do the same for the perfume.
- Using an eyedropper, place one precise drop of liquid on each strip of paper, using colour or number coding so that you know which strips have cologne, and which have perfume.
- First thing Monday morning at school, pass all of the paper strips to your classmates, giving each person one cologne and one perfume. Ask them which one they perceive to smell the most concentrated, and take note of their answers. IMPORTANT: TAKE BACK THE STRIPS OF PAPER AFTER THEY SMELL THEM.
- At the end of the day, repeat the same experiement, passing out the SAME strips of paper as in the morning, and again asking your classmates which one smells the strongest after several hours have passed. Record the results.
- If a statistically significant proportion of your classmates believed that the perfume smelled stronger than the cologne, both in the morning and in the afternoon, then your hypothesis will gave been proven.

Independent variables: Concentration scented liquid (perfume or cologne)

Dependent variable: Perception of strength of scent by classmates

Controls:
- Amount of perfume and cologne that was started with and amount of water that was added to it (amount are equal for both samples)
- Quantity in ml of liquid dripped onto each strip of paper.
- The same individuals smelled both the perfume and the cologne (consistency in perception)
- Time (all test subjects smelled strips of paper at the same time and after the same amount of time)

Result: This is where you will write exactly how many of your classmates perceived the perfume to smell stronger, both in the morning and the afternoon.

Conclusion: Fragrances is used to beautify people and make them smell more attractive. As such, human perception (scent) is the best way of determining the ideal concentration of a perfume. In addition, fragrances can be very expensive, making it worthwhile to purchase a fragrance that lasts as long as possible. Perfume is perceived to be more concentrated, and to last longer, than cologne.

Answer 2

The only way to test is to buy some of each . .
Have several subjects that you apply them to & then at a certain time check strength of smell at intervals throughout the day.
For example:
Make left arm cologne and right arm perfume (but do not tell the subject which is which)
Have you, the wearer and 1 other person smell test each arm and tell you which is stronger every 2 hours.
Document the readings for your database.

Answer 3

once you've the interest of transistors and good judgment gates you are able to make those blinking lighting fixtures. or you are able to make one in all those issues that police officials use to ascertain if someone is inebriated !! they use a chemical observed as k2cr2o7 which reacts with alcohol and oxidizes it to three carbonyl communities. k2cr207 is a coloured substance and for this reason at the same time as it really is fed on it has a tendency to loose its colour. a similar element should be finished with kmno4 or any colored oxidizing agent. you are able to also want to tutor that its a carbonyl crew through conduncting some checks of carbonyl communities(which many times contain substitute in colour). All you want is a inebriated human being.. however you are able to basically pour alcohol into the oxidizing agent to reveal the reaction. you are able to also make alcohol through the action of water on any alkene.