Objective: Explain the goal of science is knowledge about the natural world
Introduction: Although many gases in the atmosphere have little effect on weather patterns there are some that have a significant effect on the weather that we experience. Carbon dioxide is one of the gases that do affect weather. This gas has the unique characteristic of absorbing the heat sent to the Earth from the Sun. This helps keeps the Earth warm for life to exist. Carbon dioxide occurs naturally causing the greenhouse effect. The problem starts when humans artificially add higher amounts of carbon dioxide and other greenhouse gases into the atmosphere than is needed to maintain a natural balance. This happens through the burning of fossil fuels (or greenhouse gases), and is causing the Earth’s temperature to rise in an enhanced greenhouse effect. Quick Fact: The Greenhouse gases (GHGs) include water vapor (H20), carbon dioxide (CO2, methane (CH4), nitrous oxide (N20), halocarbons (HC), ozone (O3). (Source: climatechangeconnection.org)
Curriculum Connections: Students will describe examples of natural phenomena and processes such as weather that illustrate the properties of gases.