Science / Chemical Teaching Through Alternative Material Media: Characterization Of Rice Husk Ash

This paper aims to present material for Science / Chemistry teaching through the characterization of rice husk ash. The rice husk ash has a significant amount of silica and potassium in its composition and in this perspective, the importance of working with these residual materials is highlighted, given its facilityfor obtaining and adapting to the didactic content of project-related subjects by aggregating technology and environmental issues. The batches of rice husk ash obtained from the company have in their composition only beneficial elements without the presence of toxic elements, making it possible to use them in the methodological experimentation proposal. In order to be able to use the residues of the rice husk ashes safely as alternative materials for the teaching of Science / Chemistry, physical-chemical, analyses were carried out in Scanning Electron Microscopy and Atomic Absorption of mass. Through the results presented, the content approach of the Science / Chemistry disciplineshas become possible with the use of alternative materials, the ease of obtaining and the low cost constitutes a differential that makes it possible to approach experimentation.