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.
Your DIY aerator needs to reach from 2 to 4 inches deep into the lawn, with the diameter of each plug about 1/2 to 3/4 inches wide. Spike aerators that simply make a narrow hole in the lawn are ineffective aerators. Most lawns benefit from yearly aeration, done when your lawn begins its season of active growth.