Publication No. 12009
Super Value Laboratory Kit
Materials Included In Kit
Lead Testing Solution A, enough to make 100 mL
Lead Testing Solution B, enough to make 100 mL
Filter paper, 4.5 cm, 100 sheets
Pipets, Beral-type, 30
Additional Materials Required
Lead-containing items (e.g., lead strips, lead sinkers, lead shot, painted ceramics, paint chips, painted items, pipes, soldered items)
Test items (i.e., items from students’ environment to be tested for lead)*
*Have students bring items to class in plastic bags.
The purpose of this laboratory is to carefully test for the presence of lead—not to be contaminated by it! Caution students to handle all items with care and to follow test directions carefully. Students should wash their hands thoroughly upon completion of the laboratory testing. Lead Testing solutions A and B are toxic by ingestion and are eye and skin irritants. Wear chemical splash goggles, chemical-resistant gloves and a chemical-resistant apron.
Please consult your current Flinn Scientific Catalog/Reference Manual for general guidelines and specific procedures, and review all federal, state and local regulations that may apply, before proceeding. Solutions may be flushed down the drain according to following Flinn Suggested Disposal Method #26b. Solid lead items may be treated according to Flinn Suggested Disposal Method #27d. If lead is found in items from the student’s environment, contact local authorities for further laboratory testing and proper treatment procedures.
Correlation to Next Generation Science Standards (NGSS)†
Science & Engineering PracticesPlanning and carrying out investigations
Analyzing and interpreting data
Disciplinary Core IdeasMS-PS1.A: Structure and Properties of Matter
MS-ESS3.C: Human Impacts on Earth Systems
HS-ESS3.C: Human Impacts on Earth Systems
Crosscutting ConceptsEnergy and matter
MS-ESS3-3. Apply scientific principles to design a method for monitoring and minimizing a human impact on the environment.
Lead contamination is considered a very serious problem requiring immediate action, especially if small children are involved. How can lead be detected? Test some items from your environment.
Lead is an odorless, tasteless, soft gray metal. It is very malleable and has little mechanical strength. It has a low melting point (327.5 °C) and a high resistance to corrosion. It is not found in nature in its metallic state, but rather as an ore, primarily galena (PbS). Lead readily forms alloys with tin, antimony, and other metals.
Lead Testing Solution A
Lead Testing Solution B
Filter paper, 4.5 cm, 1/test
Pipets, Beral-type, 2
The purpose of this laboratory is to carefully test for the presence of lead—not be contaminated by it! Handle all solutions and objects with care and follow directions carefully. Wash hands thoroughly with soap and water before leaving the laboratory. Wear chemical splash goggles, chemical-resistant gloves and a chemical-resistant apron. Please review current Safety Data Sheets for additional safety, handling and disposal information.