Translations:Adventist Youth Honors Answer Book/Health and Science/Chemistry/77/en

From Pathfinder Wiki
Revision as of 16:33, 9 January 2021 by FuzzyBot (talk | contribs) (Importing a new version from external source)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Method

Use the rubber band to attach the steel wool to the eraser end of the pencil. The pencil should be short enough that it can fit inside the glass without sticking out the top. Fill the glass halfway with water, and place the pencil in the glass with the wad of steel wool at the bottom. Place a bowl upside-down over the top of the glass, and carefully turn the glass and the bowl over so that the glass is upside-down and the bowl is right-side-up. Add some water to the bowl and mark the water level on the side of the glass. Place the apparatus some place where it will not be disturbed. After a few days, check the steel wool - it should be rusty.