Silver nitrate is slightly toxic by ingestion and will stain skin and clothing. Copper(II) sulfate and iron(ii) sulfate solutions are toxic by ingestion. Magresium nitrate solution is a skin and eye irritant. Metal pieces may have sharp edges-iandie with care. Avoid contact of all chemicals with eyes and skin. 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. Wash hands thoroughly with soap and water before leaving the lab. Develop a Solution 1. SEP Define the Problem In your own words, briefly define the problem. 2. SEP Identify Criteria and Constraints Decide which properties are important to test and how those properties are important to the functioning of a school bus