Catastrophic Events

Word Bank
primary, secondary, biotic, biome, climaxcommunity, succession, flood, earthquake, wildfire, hurricane, tornado, volcano, sustainability

1 2 3

4

5

6

7

8

9

10

11

12

Across

2. seen when magma flows from a volcano

4. predictable pattern of changes in an ecosystem

5. catastrophic event caused by excess rain

6. a violent rotating column of air

9. forms over very warm water

10. an area with similar biotic and abiotic factors

11. greater variety leads to...

12. caused by humans or heatwave

Down

1. succession on existing soil

3. equilibrium in an ecosystem

7. begins on bare rock

8. caused by friction between 2 tectonic plates

10. non-living factors

Use the "Printable HTML" button to get a clean page, in either HTML or PDF, that you can use your browser's print button to print. This page won't have buttons or ads, just your puzzle. The PDF format allows the web site to know how large a printer page is, and the fonts are scaled to fill the page. The PDF takes awhile to generate. Don't panic!