A Science Demonstration

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Presentation transcript:

A Science Demonstration A Forest Fire A Science Demonstration “Likewise the tongue is a small part of the body, but it makes great boasts. Consider what a great forest is set on fire by a small spark.” (James 3:5)

In James 3:3-5, our words (or tongues) are likened to what three things?

Our words can be used to build others up or to tear them down Our words can be used to build others up or to tear them down. Once a false statement is released, it has a life of its own and spreads from person to person.

Just a few days ago, on May 9, 2012, three workers were injured in a flash fire at a Sinclair refinery near Rawlins, Wyoming.

A flash fire is a fire that spreads rapidly through a fuel suspended in the air, such as dust or the vapors of certain liquids. The fire can be three seconds or less, but is fast-moving and intense.

Powder--talcum, cornstarch, or foot powder, for example Supplies: Lighted candle Newspaper, dampened Powder--talcum, cornstarch, or foot powder, for example It is essential you work from a height of 1-2 feet above the candle to protect yourself from the flash.

And the end of this video shows a slow motion flash fire: This is a fire department video about how the smoke from heating oil can ignite in a flash: http://www.youtube.com/watch?v=suce6QNkVRI And the end of this video shows a slow motion flash fire: http://www.youtube.com/watch?v=2wMRL2bVKc4&feature=related

Flash fires are chain reactions Flash fires are chain reactions. When a single dust particle ignites, for example, it produces smoke and flame as it vaporizes. This flame reaches several other suspended dust particles which, in turn, continue the process, causing a substantial flash.

A rumor is like a flash fire and quickly spreads once it is started.

A nuclear explosion is a chain reaction like the flash fire is A nuclear explosion is a chain reaction like the flash fire is. An atom splits when a neutron particle collides with it which releases other neutrons. These neutrons, in turn, hit other atoms. More neutrons are released, and a chain reaction occurs. Energy is thus produced in a controlled manner.

Next Week: Nothing Hidden “But and if ye will not do so, behold, ye sin against the LORD: and be sure your sin will find you out.” (Numbers 32:23) “Neither is there any creature that is not manifest in his sight: but all things are naked and opened unto the eyes of him with whom we have to do.” Hebrews 4:13)

Liquid dishwashing detergent Hard water and soft water samples You will need: 2 glass jars Liquid dishwashing detergent Hard water and soft water samples