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.
Either hire someone to do it or rent a plug aerator and do it yourself. Do not waste your time with the spike aerators. All they do is spread the soil a tiny bit, then the soil goes right back together in a day or two. You must remove plugs, which then crumble and break down, adding the to top soil level of your lawn.