1. SUCCESSION and FOREST FIRES Forests have ages and are different at different ages. One way the differences are seen is in the way forests burn.

2. FOREST AGES AND FOREST FIRES You will see a sequence of slides in pairs. The first picture will show a forest unburned, and then it will show the forest burning. Observe the age and stage of the forest carefully in the first slide. In the next slide, watch the details of how the forest burns. Chart your observations and be prepared to answer questions at the end of the slides.

3. Forest Age: 20 years Fire: Unburned Burn the forest Let it grow

4. Forest Age: 20 years Fire: Burned Let it grow

5. Forest Age: 100 years Fire: Unburned Burn the forest Let it grow

6. Forest Age: 100 years Fire: Burned Let it grow

7. Forest Age: 200 years Fire: Unburned Burn the forest Let it grow

8. Forest Age: 200 years Fire: Burned Let it grow

9. Forest Age: 300 years Fire: Unburned Burn the forest

10. Forest Age: 300 years Fire: Burned Let it grow Go to questions

11. FOREST AGES AND FOREST FIRES You should have observed forest fires and how they changed under various conditions. Organize your observations in a chart. Use your chart to answer the following questions. Note to Teacher: If you hit “spacebar”, the answer will be displayed. If you hit “page down”, it will go to the next question.

12. Click here to reveal answer Click here for next question

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16. Click here to reveal answer Click here for next question

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18. Click here to reveal answer Click here for next question

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20. Click here to reveal answer Click here for next question

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24. FORESTS and FOREST FIRES Our National Forests have many purposes, but they are frequently managed for lumber. That means our National Forests have different ages. Please advise the Forest Service about what fire dangers they will find in different locations. Write a 1-3 paragraph essay about succession and forest fires. Be sure to include a chart of your observations.