ILTS Science - Earth and Space Science (108): Test Practice and Study Guide

  • Course type: Self-paced
  • Available Lessons: 279
  • Average Lesson Length: 8 min
  • Eligible for Certificate: Certificate completed Yes

    Certificates show that you have completed the course. They do not provide credit.

  • Watch a preview:

    Science Vocabulary & Concepts: Study Skills & Word Parts

  • ILTS Science - Earth and Space Science (108): Test Practice and Study Guide Practice Test
  • This course can be found in: ILTS Test Prep

    Thousands of practice questions, 30+ ILTS study guides, and 4,000+ test prep video lessons

Course Summary

Let us help you review the earth and space science topics you'll find on the ILTS Science - Earth and Space Science content area test. Use the chapters, lessons and quizzes in this material as a mobile, flexible study guide you can use to prepare for the exam.
Create an account
to start this course today
Try it risk-free for 30 days
Create an account
Try it risk-free for 30 days

25 chapters in ILTS Science - Earth and Space Science (108): Test Practice and Study Guide

Course Practice Test

Check your knowledge of this course with a 50-question practice test.
  • Comprehensive test covering all topics
  • Detailed video explanations for wrong answers
Week {{::cp.getGoalWeekForTopic(4, 25)}}
Course Progress Best Score
Lesson 1 - The Environment, Levels of Ecology and Ecosystems  Take Quiz
Lesson 2 - Ecosystems, Habitats and Ecological Niches  Take Quiz
Lesson 3 - Food Chains, Trophic Levels and Energy Flow in an Ecosystem  Take Quiz
Lesson 4 - Interspecific Competition, Competitive Exclusion & Niche Differentiation  Take Quiz
Lesson 5 - Predator/Prey Interactions, Camouflage, Mimicry & Warning Coloration  Take Quiz
Lesson 6 - Symbiotic Relationships: Mutualism, Commensalism & Parasitism  Take Quiz
Lesson 7 - Populations: Density, Survivorship and Life Histories  Take Quiz
Lesson 8 - Carrying Capacity, Migration & Dispersion  Take Quiz
Lesson 9 - Dispersal, Colonization, and Island Biogeography  Take Quiz
Lesson 10 - Conservation Biology, Habitat Fragmentation, and Metapopulations  Take Quiz
Lesson 11 - Ecological Succession: From Pioneer to Climax Communities  Take Quiz
Lesson 12 - How Introduced and Invasive Species Alter Ecological Balance  Take Quiz
Lesson 13 - Biomes: Desert, Tropical Rainforest, Savanna, Coral Reefs & More  Take Quiz
Lesson 14 - Biomes: Tundra, Taiga, Temperate Grassland, and Coastlines  Take Quiz
Lesson 15 - Biogeochemical Cycling and the Phosphorus Cycle  Take Quiz
Lesson 16 - The Nitrogen Cycle, Acid Rain and Fossil Fuels  Take Quiz
Lesson 17 - The Carbon Cycle and Long-Term Carbon Storage  Take Quiz
Lesson 18 - What Is IPAT? - Factors of the Human Impact on the Environment  Take Quiz
Lesson 19 - Deforestation, Desertification & Declining Biological Diversity  Take Quiz
Lesson 20 - Fossil Fuels, Greenhouse Gases, and Global Warming  Take Quiz
Week {{::cp.getGoalWeekForTopic(12, 25)}}
Week {{::cp.getGoalWeekForTopic(13, 25)}}
Week {{::cp.getGoalWeekForTopic(20, 25)}}
Week {{::cp.getGoalWeekForTopic(23, 25)}}

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Practice Tests in this course
Check your knowledge of this course with a 50-question practice test. Once you take the test, you will receive a detailed exam report complete with your personal statistics and even specific lessons to focus on! Take the practice test now
Your detailed study guide will include:
  • Answers and detailed explanations to each question
  • Video lessons to explain complicated concepts
Course Practice Test
More practice by chapter
Ch. 24
Astronomy & Space Exploration
Not Taken
Ch. 25
ILTS Science - Earth and Space Science Flashcards
Not Taken
See practice tests for: