Product Code:
SCIENCEQEDUSTEMLAB190108
Description:
Hydrometer Only
Hydrometer Only -Make electricity by friction; store and transfer it; learn about electrophorus and proof plane. Includes: electrophorus with charge plate and handle; 6 friction rods, labeled; acetate and polyethylene cloth; proof plane with transfer ball; neon lamp; conductive ball with hook; pith balls; instructions.
