A common science fair project using popcorn is one in which one variable in the popping process is changed. For instance, an experiment tests which of three brands of popcorn yields the most, either by weight or volume. Other variables that possibly affect how much popcorn is produced include age of the kernels, time for popping, the amount of air kernels have been exposed to during storage and storage temperature.Know More
Once the corn has been popped, individual pieces are measurable. Therefore, science fair projects are able to determine results other than the total amount popped. These include the maximum size of individual popped corn, the average size of popped corn and the percentage or total number of popped or unpopped kernels.
It is possible for yield to be influenced by the method of popping: microwave, stovetop or air popper. These variations are also used to assess which type of popcorn is preferred by the most people. Preference is also measured for popcorn flavor, such as sweet versus salty and butter content.
A more elaborate project examines how water inside the kernel affects popping. Some kernels are heated in a 220-degrees Fahrenheit oven for two hours to dry them out. Others are soaked in water for the same amount of time. The yield for these variations is compared to the control group, the untreated popcorn.Learn more about Grocery
One sports-related science experiment for a younger child is to track how well he performs physical activities at various times of day. An older child can test which sport provides the best workout by taking his pulse after different exercises, then write a possible explanation of why the results vary.Full Answer >
Some good ideas for science fair projects include recording the effects of different foods on the human heart rate, observing the influence of phrasing questions differently on the answers they elicit, paper airplane engineering, coin toss probabilities and an investigation of platonic solids. Science fair projects can be conducted within virtually any branch of science, including biology, chemistry, physics, mathematics, engineering and the behavioral sciences, such as psychology or sociology.Full Answer >
A good science fair project involving dogs is finding out if a dog can differentiate between words or even simple sounds in human language. Another simple project is testing colorblindness in dogs.Full Answer >
Science fair projects related to global warming include those that analyze the greenhouse effect, ozone depletion, the El Niño weather pattern and the influence of carbon dioxide. Students also study how climate change affects natural systems and human health in science fair projects.Full Answer >