timers
hubbard scientific 6027 reaction timer
investigate functions of the nervous system with this interactive laboratory activity using a reaction time students measure response time to various stimuli including light sound and touch materials are included to allow students to develop their own personal training programs and to chart the results ultimately students relate reaction time to general health and mental alertness kit includes reaction time game board and pieces chart packet of activities and teacher s guide reaction timer this battery operated digital timer measures reaction time in hundredths of a second response switch can be used to measure reactions to light sound and touch stimuli american educational products have a lead ship time of 21 days sku amed1171