Pay in 4 interest-free payments of $8.75 Learn more
Ships within 48 hours · Estimated delivery Sep 12 - Sep 17
All-in-one versatility: Each device includes 10 sensors
Students can investigate circuitry
99 m/s (measures in cm/s and km/h
Why Teachers Love the Horizon Fuel Cell Car Science Kit
Secchi Disk Electricity & Magnetism All-in-one versatility: Each device includesTurn how clear a lake looks into a number you can track The Secchi Disk is an 8. 75" white plastic disk marked with black and white quadrants, attached to a weighted, foot marked line. Lower it into a lake, pond, stream, or aquarium until the pattern disappears from view, then read the depth off the line. That depth, the Secchi depth, is a standard field measurement of water clarity used by limnologists and water quality monitoring programs. The