Some easy investigatory science project ideas include attempting to purify used cooking oil, making biodegradable plastic and increasing the shelf life of fruits and vegetables. An investigatory science project is any project that starts out with a question and uses the scientific method to attempt to answer that question.Know More
One easy experiment is to investigate possible strategies for purifying used cooking oil. Cooking oil typically goes to waste and is not disposed of properly, but this experiment researches ideas for filtration or purification. Different processes of purification are tested on used oil samples, which are then tested against samples of fresh oil in terms of color, odor, cleanliness and viscosity.
Another easy experiment is to test different materials as effective components in a biodegradable plastic bag. Plastic bags can take up to 1,000 years to degrade completely, causing serious threats to the environment. This project attempts to find effective starches to use in a more biodegradable bag. Different starch components can be tested in terms of biodegradability, tensile strength, bendability and other properties.
Finally, examining factors that increase the shelf life of fruits and vegetables is another easy investigatory project. This experiment attempts to find a coating or other solution to more effectively maintain freshness in certain fruits or vegetables. Other experiments have focused on bananas with a Chitosan coating, but students can try different combinations of solutions, fruits and vegetables.Learn more about K-12
Discovering whether brand-name or generic batteries last longer and determining whether an individual's dominant hand is more sensitive than the other hand make good science fair projects. The former experiment requires different brands of AA batteries, while the latter involves adult test subjects, ice water and a stop watch.Full Answer >
Examples of creative elementary school science projects include making a lemon battery, a three-dimensional model of the sun or a bird feeder. Other projects include making an erupting volcano or an Alka-Seltzer film canister.Full Answer >
Some good science projects for kids are Make Your Own Lightning, Blindfolded Taste Test, Paper Bridge for Pennies, Extracting Onion DNA, The Chemistry of Hair Highlights and Digital Voice Analysis, according to Science Buddies. Teachers can use these projects to teach science in the classroom or have students present them at a science fair.Full Answer >
Some good ideas for middle school science projects include studying the rate of mold growth on various surfaces or examining how search engines work. Projects with complete kits available, such as making a battery out of a potato, serve as good last-minute options.Full Answer >