Smoke is a collection of airborne solid and liquid particulates and gases emitted when a material undergoes combustion or pyrolysis, together with the quantity of air that is entrained or otherwise mixed into the mass. It is commonly an unwanted by-product of fires (including stoves, candles, oil lamps, and fireplaces), but may also be used for pest control (fumigation), communication (smoke signals), defensive and offensive capabilities in the military (smoke-screen), cooking, or smoking. Smoke is used in rituals where incense, sage, or resin is burned to produce a smell for spiritual purposes.
Study Guide for Smoke
Definition and Composition: Understand the definition of smoke and the composition of airborne solid and liquid particulates and gases emitted during combustion.
Causes of Smoke: Learn about the various sources of smoke, including fires, fumigation, cooking, and rituals.
Science Process Skills: Scientific Inquiry and Critical Thinking Skills
Making Observations and Asking Questions: Students will apply skills from previous grades and make measurements and observations about a variety of events and phenomena, including those that occur during very small and very large time frames.