Let's do an experiment now. Listen to the sound file. 20 words will be read with an interval of about one second between each word. When the file has finished playing write as many words as you can remember, regardless of order into the appropriate box. Do not guess. Click the start button when you are ready and the check button when you are done.

North; apple; John; red; dime; pear; Bill; blue; quarter; West; dollar; South; grape; nickel; yellow; East; green; Robert; banana; Charlie

Did you notice anything about the items in the list? The words were broken up into five different categories, with four items each. Did you list any words that were not on the original? We'll explore this later.