Hydro-Electric Power Station with Working Water Turbine Physics_Heat & Thermodynamics Hand-cranked 4-stroke gasoline engine model

Hand-cranked 4-stroke gasoline engine model at 13

High-level peroxide test strips in a 50-strip vial calibrated at 0

Fullerene C60 kit with 60 atoms and 90 bonds for building the spherical cage structure characteristic of fullerene carbon allotropes

this super-taster set pairs PTC

Battery-powered iron-clad electromagnet that lifts up to 100 pounds from its end hooks on four C cells

Hydro-Electric Power Station with Working Water Turbine Physics_Heat & Thermodynamics Hand-cranked 4-stroke gasoline engine modelBenchtop hydro electric power station at 13 by 9 by 7. 5 inches with a brass chrome water wheel in a 10cm aluminum casing, delivering wheel driven power to a lamp or a Newton color disc.