US$ 130.00
Annotated cross-section model of Earth showing crust
student study guide copymasters
(use your imagination)
Designed to teach Ohm's law and current-limiting behavior
Tensiometer-based soil moisture data-logging sensor reading 0 to 50 cBar by detecting vacuum in a water-filled ceramic tip
Laboratory Grade Coarse Iron Filings, 500g Lab Equipment_Meters & Testers Annotated cross-section model of EarthFive hundred gram bottle of coarse 50 mesh laboratory grade iron filings, the standard iron source for visualizing magnetic field lines and demonstrating sulfur iron compound synthesis.
US$ 130.00
US$ 24.99
US$ 165.00
US$ 146.00
US$ 196.00
US$ 595.00
US$ 29.00
US$ 120.00
US$ 1060.00
US$ 770.00
US$ 1485.00
US$ 118.00
US$ 12.99
US$ 49.00
US$ 40.00