Oxidation of iron, also known as rusting, will do the trick. ... www.sciencebuddies.org/science-fair-pr... - 32k - ) Experiment from website: Objective The goal of this experiment is to measure the percentage of oxygen in air samples. Introduction We live near the bottom of an ocean of air that surrounds the earth.
Brinly's high-performance 40 in. Tow-Behind Plug Aerator is the perfect tool for achieving and maintaining a healthy, vibrant lawn. The 24 heat-treated 16-Gauge steel tines penetrate the soil up to 3 in. deep, allowing water, seed and nutrients to reach your lawn's root system.
Spark plug. A spark plug (sometimes, in British English, a sparking plug,[1] and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within the engine.