US$ 35.00
iron filings
visualizing Pascal's-principle mechanical advantage directly
Polished non-warping wooden base with a built-in meter-scale carries a compass-box magnetometer
and wood bobs on separate strings to a 42
letting students quantify how color and finish influence heat uptake during radiation experiments
Reading Magnifier, 60mm, 20cm Focal Length Material_Acrylic iron filingsChrome plated 60mm reading magnifier extending to a 20cm focal length, the longer focal distance lowering magnification but broadening the visible area on a single page.
US$ 35.00
US$ 163.50
US$ 110.00