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Nebraska Science Standards

4.4 Life ScienceLife science focuses on the science facts, concepts, principles, theories, and models that are important for all students to know, understand, and use.

4.4.1 By the end of fourth grade, students will develop an understanding of the characteristics of living things.

Student demonstrations:Describe the various structures of plants and animals necessary for growth, survival, and reproduction.

NatureWorks Episodes

1. Adaptation
2. Coloration
3. Natural Communication
4. Migration

Describe internal causes of behavior, such as hunger, and external causes of behavior, such as change in the environment, in living things.

NatureWorks Episodes

1. Adaptation
2. Coloration
3. Natural Communication
4. Migration

   
4.4.2 By the end of fourth grade, students will develop an understanding of the life cycles of living things.

Student demonstrations:Describe the life cycle of an organism. Recognize inherited characteristics of living things, such as color and number of eyes.
Recognize learned characteristics of living things, such as language or hunting for food.

NatureWorks Episodes

1. Adaptation
2. Coloration
3. Natural Communication
4. Migration

4.4.3 By the end of fourth grade, students will develop an understanding of living things and environments.

Student demonstrations:Diagram a food chain.

NatureWorks Episodes

9. The Wildlife Web I 
10. The Wildlife  Web II
11. Decomposers and Scavengers

Explain how environmental changes affect behavior and survival of living things.

NatureWorks Episodes

12. Population Dynamics
15. Invasive Species
16. Life at Risk

Describe how humans and other living things cause positive and negative changes in their environment.

NatureWorks Episodes

12. Population Dynamics
15. Invasive Species
16. Life at Risk


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