Fifth-grade science projects apply the elementary science principles and math students have learned. A fifth grader's ability to appreciate larger sample implications for their experiments are represented by projects including self-inflating balloon experiments using baking soda, as well as temperature experiments using mint candies, according to Education.com. Several of the science project options cost little to create and students can perform them with minimal adult assistance.
The self-inflating balloon science project allows the student to demonstrate a chemical reaction between a base and an acid. The fifth graders need a test tube along with vinegar and baking soda. A funnel is needed to add the vinegar and baking soda into the test tube easily. A small balloon is required to fit over the top of the test tube. The balloon inflates from the reaction of the baking soda and vinegar mixture, as shown on the Education.com website.
Students can perform an experiment to measure whether mint actually cools things by using mint candies, such as Tic-Tacs or Mentos, and two glasses of hot water. A thermometer is required for measuring temperature. Students measure the effects of mint candies in hot water by first recording the temperature of both glasses of water. Add mints to one of the glasses and record the temperature periodically over 30 minutes. Measure the temperature of both glasses of water at the same time to chart any difference in temperature over the 30 minutes, as stated on the Education.com website.