Formation of the Earth: Theories


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question 1 of 3

Where in the Milky Way galaxy is our solar system located?

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1. How long after the Earth was formed did it take to achieve the state we recognize now?

2. The Earth was under continuous bombardment by meteorites and comets as it formed and continued to take shape. What was the significance of comets hitting the Earth during that time?

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About This Quiz & Worksheet

While we definitely don't have time to cover every single development in Earth's billions of years of formation, these helpful, educational assets will get you familiar with the most important milestones. Use these materials to gauge your understanding of the foundations of the planet's structure, its water, and its atmosphere.

Quiz & Worksheet Goals

This quiz and worksheet combo focus on the following:

  • Location of the Milky Way
  • Earth's formation
  • Relationship between early Earth and comets
  • Layers of Earth
  • Likely origin of Earth

Skills Practiced

Use the following skills when working with these assets:

  • Critical thinking - apply relevant concepts to examine information about Earth and our galaxy in a different light
  • Lesson comprehension - ensure that you draw the most important information from the related natural science lesson
  • Knowledge application - use what you've learned to identify Earth's layers

Additional Learning

For more information, check out the corresponding lesson titled Formation of Earth: Theories. It will teach you how to:

  • Distinguish a planetesimal from a planet
  • Identify the respective ages of Earth and the Milky Way
  • Describe the formation of Earth
  • Explain, step-by-step, how Earth's atmosphere and water supply came to exist