1. 8 th Grade Science Unit 7: Changes in the Earth Lesson 1: Road to Survival vs. Road to Extinction Vocabulary of instruction

2. 1. Endangered Species Species of plants or animals that are in danger of extinction or at risk of dying out due to changes in environmental conditions or excessive predation. Species of plants or animals that are in danger of extinction or at risk of dying out due to changes in environmental conditions or excessive predation.

3. Examples of Endangered Animals

4. Examples of Endangered Plants

6. 2. Equilibrium Balance, state in which all forces or reactions act in perfect opposition and cancel the effects of one another. Balance, state in which all forces or reactions act in perfect opposition and cancel the effects of one another. Living and non-living environment interact with each other to form a stable system. A natural self-sufficient unit of the world comprising a biotic community (living organisms) and its abiotic physical- chemical factors. Living and non-living environment interact with each other to form a stable system. A natural self-sufficient unit of the world comprising a biotic community (living organisms) and its abiotic physical- chemical factors.

7. 3. Extinction A kind of organism that is no longer alive on Earth. It does not have any living examples. A kind of organism that is no longer alive on Earth. It does not have any living examples.

9. 4. Habitat Destruction Is a process of change in land use in which one habitat type is removed and replaced with another type of habitat. In this process of change in land use, plants and animals which previously used the site are displaced or destroyed, reducing biodiversity. Is a process of change in land use in which one habitat type is removed and replaced with another type of habitat. In this process of change in land use, plants and animals which previously used the site are displaced or destroyed, reducing biodiversity.

10. Examples of Habitat Destruction

12. 5. Threatened Species Any species (including animals, plants, fungi, insects, etc.) which are vulnerable to extinction in the near future. Any species (including animals, plants, fungi, insects, etc.) which are vulnerable to extinction in the near future.