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Things work because their fundamental forces allow them to. To better understand how something works, that thing may be made into the subject of a physical experiment. Discovering how a thing works is done through scientific experimentation or through observing it and m...


According to WebMD, foods to avoid eating include items that contain added fat, sugar, salt and calories that don't provide nutritional value. Main foods to avoid are mayonnaise, soft drinks, alcoholic beverages, processed lunch meat, hot dogs, sausages, whole milk prod...


There are 720 ways in which six things can be arranged. The number of ways that a set of things can be arranged is known as the number of permutations of that set. Each distinct arrangement is called a permutation.


All living things grow by undergoing mitosis, which refers to the process wherein somatic cells divide to produce new cells. An adult human body has approximately 37 trillion cells that divide at a rate of nearly 2 trillion times per day.


Living things are organisms that display the key characteristics of life. These characteristics include the ability to grow, reproduce, take in and use energy, excrete waste, respond to the environment, and possess an organized structure more complex than that of non-li...


The U.S. Department of the Treasury reports that production of $500 bills ended during World War II. Distribution of these bills ceased on July 14, 1969. The Treasury notes that some of these bills may remain in circulation as of 2014 and are still considered legal tend...


Children can invest money in a Roth IRA if they earn an income. Children typically are unable to invest in other ways because most states limit investment accounts to individuals who are at least 18 or 21 years old, according to CBS News.