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This mini portable electric 4” desk fan is lightweight, quiet, easy to operate (simple on/off switch) and requires no batteries. Fan can be plugged into an outlet using the included plug attachment or connected using the USB cable. Fan provides a steady stream of cool air and has rubber stoppers on the base to prevent sliding or scratching on finished surfaces. Fan also features a tilting frame so the stream of air can be adjusted. Science educational products and manipulatives incorporate applied math and science principles into classroom or homeschool projects. Teachers in pre-K, elementary, and secondary classrooms use science education kits, manipualtives, and products alongside science, technology, engineering, and math (STEM) curriculum to demonstrate STEM concepts and real-world applications through hands-on activities. Science education projects include a broad range of activities, such as practical experiments in engineering, aeronautics, robotics, chemistry, physics, biology, and geology.