Secchi Disk Electricity & Magnetism Students can investigate circuitry

Students can investigate circuitry

Why Teachers Love the Horizon Fuel Cell Car Science Kit

All-in-one versatility: Each device includes 10 sensors

Snell’s Law and the critical angle

Quick quantitative measurements: Built-in photogate slots make data collection fast and reliable

Secchi Disk Electricity & Magnetism Students can investigate circuitryTurn 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