Food often loses some strength of its flavor when you have a cold. People know that smell and taste can have an effect on one another. But what happens when you taste something different than what you smell? Gather together objects with strong scents, like vanilla extract, coconut extract, lemon, and an orange, and then buy a bag of lollipops with assorted flavors. For each test subject, you will choose a combination of one smelling item and one flavor of lollipop. Try to get enough volunteers to test out each combination of smell and flavor. Blindfold your participant, then have them smell the item for a moment. Ask them to identify the smell. Next, remove the smell and have them suck on the lollipop for approximately one second. Remove the lollipop and have them identify the flavor. Record all results. Take note of which flavors were hard to identify, which smells were hard to identify, and which smells in particular affected particular flavors. It's best to try only one combination per participant, because lingering smells and tastes may affect their perception of future tastes and smells.
You'll need at least 10 volunteers. Try to get a participant as young as under 10, a teenage participant, a participant in his 20s, a participant older than 80, and so on. Using a stopwatch, tell the person to let you know when 10 seconds has passed. When they indicate the 10 seconds has passed, record their age and how much time actually did pass. Repeat this experiment with other increments of time; for example, 30 seconds, one minute, or two minutes. Take note of which ages produced the most accurate perception of time.
Conjure up your creativity as you design three different labels for a candy bar. Make these approximately business-card size. Use the same fake brand name, and same details for the candy bar, but use different colors, fonts, images, so the tone or branding seems different on each one. Make at least 10 copies of each of these images. Next, use three different real, mini-sized candy bars, and cover each with a different label. You will then approach volunteers and tell them to pick out a candy bar. Record which of the three labels they took. Repeat this experiment with at least 10 participants. Record which label was most popular.
For this experiment, you'll need several subjects who are at the same level of math in school. Write a math test, with questions ranging from easy to moderately challenging, that all volunteers should be able to complete. Next, select at least five different types of music. Musical genres can include classical, hip hop, rock, jazz, pop, folk, and country. For the experiment, you will give each volunteer a set amount of time to complete the test while you play one genre of music in the background. Record the number of correctly solved math questions, and the type of music the subject was listening to.