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Tuesday 9/11/18 Notebook Entry: Which of the following things use fire? car stove Hot water tank plane.

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Presentation on theme: "Tuesday 9/11/18 Notebook Entry: Which of the following things use fire? car stove Hot water tank plane."— Presentation transcript:

1 Tuesday 9/11/18 Notebook Entry: Which of the following things use fire? car stove Hot water tank plane

2 Forest Fires & Their Role in the Earth System

3 What is Fire?

4 Components of Fire Must have all 3 for a fire to occur
Fuel- material being burned Oxygen- needed for chemical reaction Heat- ignites the fuel with the oxygen

5 Causes of Forest Fires Lightning Human carelessness
Volcano eruptions and heat waves Droughts and cyclical climate changes Commonly occur during years of drought and on days of strong winds

6 Increased chance of forest fire in areas that…
Have a really wet season (lots of plants grow) followed by a very dry season (greenery dries out). Have not had a recent forest fire and therefore have a lot of overgrowth.

7 Forest Fire Fuels

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10 Benefits of Forest Fires
Forest fires are a natural part of Earth’s system Fires allow for regeneration Fires are necessary for biological diversity and healthy ecosystems

11 Removes dead, weakened trees, and plants
Creates a more open forest floor which allows sunlight in for more growth Ash left behind puts nutrients into the soil Kills off invasive species allowing native species to regain territory

12 Disadvantages of Forest Fires
Loss of habitat for animals Increase particles in the air can affect health of people Soil damage which can result in erosion Uncontrolled burns can result in millions of dollars worth of property damage to homes or timber

13 Yellowstone Fires of 1988


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