Description

Overview:

In this demonstration, the teacher will use a potato and hydrogen peroxide to generate oxygen in a closed environment. Students can then observe its effects on a burning wooden splint and on burning steel wool. They will understand that a large amount of energy can be released by the process of oxidation. As an extension, the teacher can discuss how the appearance of oxygen (produced by cyanobacteria) in Earth's early atmosphere initially resulted in the formation of large deposits of iron oxide (Banded Iron Formations) and then aided in the evolution of more complex life forms.

Subject:

Astronomy, Chemistry, Geoscience, Space Science

Level:

Middle School, High School

Material Type:

Interactive, Lecture Notes, Simulation

Author:

Glenn Dolphin

Provider:

UCAR Staff

Provider Set:

New York State Earth Science Instructional Collection

Date Added:

11/06/2014