This project investigates how often individuals follow medical advice to wash their hands after using the bathroom, and whether men or women wash their hands most often. With a partner of the opposite sex, go to various public bathrooms at stores, restaurants, fast food places and truck stops. You go into the bathroom for your sex, and your companion goes into the other one. Discreetly observe and record how many individuals wash their hands after using the bathroom, how many spent at least 20 seconds doing so and whether they turn off the faucet and open the door with a clean paper towel. Compile the data and make a graph for your display.
You need a calorie counter, heart rate monitor, breathing rate monitor, food and at least 10 test subjects. The subjects should not eat for six hours before the test. Record subjects' heart and respiratory rates. Time the subjects as they run in place as long as they can. Calculate and record the approximate calories burned, and how they feel. For the following day, tell the subjects to eat two hours before the test. Repeat the test. Compile the data and graph your results. Look to see if duration was better, or the subjects felt better eating or not eating before exercise.
You'll need 10 or more test subjects and helpers, and a measuring tape for each subject. Instruct the subjects to have their helper measure their height when they get out of bed, at noon and just before going to bed. They should record the time they fell asleep until they woke up, and how many hours sleep they got each night for two weeks. Compile the data, including the age of the subjects. Look to see if there is any difference in height over a 24-hour period, whether more sleep makes a height difference and if the results vary by age. Graph your results for your display.
Find a test subject who plays a stringed instrument, such as a violin, and ask her to bring her instrument for the experiment. You'll also need a thermometer and a tape recorder. Fill the sink with the coldest water the subject can stand. Record the temperature. Have her place her hands in the water for three minutes. Tell her to dry her hands and play C scales on her instrument for 60 seconds. Repeat, raising the temperatures five-degrees each time until the water feels almost too warm. Listen to the recordings and count the number of correctly played notes. Graph the relationship between temperature and notes played per second.