Refill Oil Spill Junior Kit, learn to measure data and compare results, Great for teaching scientific process, Includes student lab page, Designed to accommodate 32 students working in pairs. Target Grades: K-5, To learn oil containment and removal techniques
Reflex Hammer allows you to record exactly how fast your reflexes are, Built-in accelerometer will put a marker into your recording the instant the hammer strikes your subject, while the Muscle SpikerBox Pro records from your quadriceps