Glacial Landscape Teaching Model Lab Supplies_Tubes & Vials US-milled iron filings at 40-60

US-milled iron filings at 40-60 mesh in a 250-gram translucent screw-cap bottle

Sturdy wooden pulley simple-machine model with multiple pulleys mounted in series and parallel

giving teaching and research benches a flexible mount for demonstration equipment across physics and chemistry workflows

the wider working face giving longer beam paths for clear refraction-angle measurements

LED-indicating 2-input AND gate module showing HI and LO states with red and green LEDs and a printed truth table

Glacial Landscape Teaching Model Lab Supplies_Tubes & Vials US-milled iron filings at 40-60Before and after glacial landscape model on a 75 by 100 cm wall mountable backboard, depicting moraines, U shaped valleys, and eroded slopes with each feature labeled.