This science project has not been around the block several times like many have. It is a fresh idea and has won awards at science fairs. Not only that, it can truly give you important information about the safety of your house.
This project will tell about lead poisoning and will show items that test positive for lead. We first tried this project on cans purchased at various oriental food markets. These markets carry imported cans – some of which are sealed with lead. Fortunately for the food industry, none of the cans contained lead. (Lead cans have a thick, prominent seal down the side.) Unfortunately for us, we had no experiment with lead containing cans.
We switched gears and chose to test items in the house. The results were surprising and a bit frightening. We purchased home lead testing kits similar to the ones found at http://www.leadinspector.com/. They look like small cardboard tubes with cotton on the end. You squeeze the tube to release the testing chemical and then rub the tip on whatever you are testing.
For the experiment, we went through the house and tested fishing equipment, children’s jewelry, paint, picture frames and more. There was an antique picture frame with led and of course, the fishing lures had lead. We also found the weights that kept the live plants on the bottom of our fish tank had lead – so those came out right away.
The most frightening thing we found were lead pipes under our kitchen sink. Fortunately, the water department in our city tests water for free. They actually dropped a test kit off at our house, we took a sample and then they picked it up. Although the pipes were lead, there was no lead leaking into our water supply.
The science project display gave information about lead and lead poisoning. We attached objects that tested both negative and positive, as well as an unused test strip and one that was used and positive. This science project won an award, an A grade and helped us to find dangerous lead in our home.