Names - _____________________________________ 8th Grade Earth Science Lab – Iron Content of Soil November 1st, 2018 DAY 1 1. Mass of your soil: ______________ grams DAY 2 2. Mass of dry filter paper: ______________ grams DAY 3 3. Mass of filter paper + iron (III) hydroxide: ______________ grams 4. Mass of iron (III) hydroxide: ______________ grams 5. Concentration of iron in soil: ______________ %