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Ch 50: Ecosystems - ORELA Middle Grades General Science

About This Chapter

Use the short and engaging video lessons in this chapter to enhance your preparations for the ORELA Middle Grades General Science assessment. Rediscover ecosystems and test your comprehension with short quizzes.

Ecosystems: ORELA Middle Grades General Science - Chapter Summary

This overview of ecosystems can serve as the perfect review tool as you prepare to take the ORELA Middle Grades General Science assessment. Watch video lessons to ensure you're prepared for:

  • Describing biomes in the desert, tropical rainforest, savanna, coral reefs and more
  • Identifying biomes in the tundra, taiga, temperate grassland and coastline areas
  • Defining the open ocean biome
  • Examining the primary productivity of biomes

The lessons offer conveniences you can't get with traditional classes or tutors. You can review ecosystems from the comfort of your home, or on the go via your laptop, smartphone or tablet. Video lessons are always available, giving you access to expert instruction when it best suits you.

Ecosystems: ORELA Middle Grades General Science Objectives

The ORELA Middle Grades General Science assessment gauges your comprehension of four areas of science: the nature of science, physical science, life science and earth and space science. This chapter covers topics found in the life science content domain, which constitutes approximately 25% of the entire test. Prepare for questions in this domain by reviewing the lessons in video or transcript form. After refreshing your knowledge of ecosystems, you can take self-assessment quizzes and a chapter exam to test that knowledge.

The computer-based assessment is designed to help educators secure the licensure needed to teach general science to middle grade students in Oregon classrooms. You will be asked to answer 150 multiple-choice questions. The test lasts three hours and requires a minimum score of 228 to pass.

4 Lessons in Chapter 50: Ecosystems - ORELA Middle Grades General Science
Test your knowledge with a 30-question chapter practice test
Biomes: Desert, Tropical Rainforest, Savanna, Coral Reefs & More

1. Biomes: Desert, Tropical Rainforest, Savanna, Coral Reefs & More

Take a trip around the world and learn all about different biomes. Why can you only find certain plants and animals in specific places? What are the most fertile climates on Earth? Watch on to answer these and other questions.

Biomes: Tundra, Taiga, Temperate Grassland, and Coastlines

2. Biomes: Tundra, Taiga, Temperate Grassland, and Coastlines

Take a trip with us in this lesson, starting in the Pacific Ocean, traveling across California through the Central Valley and up to the peaks of the Sierra Nevada mountains. We'll learn how oceans, elevation, and people can determine which types of biomes are found in different areas and check out the Earth's most massive and oldest organisms.

Open Ocean Biome: Plants, Animals, Climate & Definition

3. Open Ocean Biome: Plants, Animals, Climate & Definition

Seventy-one percent of the surface of our planet is covered by the oceans. It should be no surprise that the open ocean biome is the largest biome on Earth. In this lesson, we will investigate the properties and inhabitants of the open ocean biome.

Primary Productivity of Biomes

4. Primary Productivity of Biomes

Imagine a desert, a rainforest, and a lake. All of these areas are similar in that there are plants growing in them. These areas all vary because the amount of plant production is different based on the type of habitat. This lesson will explore the concept of primary productivity and how it varies by biomes. It will also discuss the most productive biomes and the biomes that produce the least biomass.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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Other Chapters

Other chapters within the ORELA Middle Grades General Science: Practice & Study Guide course

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