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The Origin & History of Life On Earth - Middle School Life Science: Homeschool Curriculum Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Scientists agree that Earth is about how old?

Question 2 2. Small, non-living droplets that can regulate their internal environments are best known as _____

Question 3 3. Miller and Urey used all of the following substances to simulate Earth's early atmosphere EXCEPT _____.

Question 4 4. Which of the following theories best explains the mass extinction of the dinosaurs?

Question 5 5. The idea that the earth is constantly changing and, therefore, life on earth is continually evolving is:

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Question 6 6. What method is used to determine the specific age of a rock or fossil?

Question 7 7. What type of event separates the Paleozoic, Mesozoic, and Cenozoic eras from one another in the Phanerozoic eon?

Question 8 8. The time period in Earth's history that saw the greatest increase in both the number and diversity of species is the:

Question 9 9. What scientist is credited with the idea that early life on Earth formed through a series of reactions that made simple compounds gradually more complex?

Question 10 10. On the Galapagos Islands, there are several species that are similar and resemble a common ancestor. Each island has a slightly different ecosystem. Which of the following best explains how these different species came to be?

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Question 11 11. Which term best describes change over time?

Question 12 12. The Archean and Proterozoic eons are grouped together as the:

Question 13 13. What is the purpose of the device shown?

Question 14 14. Which answer choice correctly orders the three major eons of Earth's history, from the oldest to the most recent?

Question 15 15. Scientists have found fossils that show a sudden appearance of a new organism after a period of no change. Which form of evolutionary change best explains this?

The Origin & History of Life On Earth - Middle School Life Science: Homeschool Curriculum Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Middle School Life Science: Homeschool Curriculum  /  Science Courses
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