The Moon MEL
Below are links to resources that will help students use the Moon MEL and learn more about fundamental scientific principles related to the Moon and its formation.
This article provides an introduction to the Moon MEL plus suggestions from classroom use including management tips, potential problems, and activity extensions.Understanding the Formation of the Earth's Moon (Acrobat (PDF) 822kB Jun4 18)
Next Generation Science Standards Performance Expectation
HS-ESS1-6: Earth's Place in the Universe
- Apply scientific reasoning and evidence from ancient Earth materials, meteorites, and other planetary surfaces to construct an account of Earth's formation and early history.
Model A: The Moon was an object that came from elsewhere in the solar system and was captured by Earth's gravity.
Model B: The Moon formed after a large object collided with Earth and material from both combined to create the moon.
- Moon Model Plausibility Ratings (Acrobat (PDF) 140kB Jun4 18)
- Moon MEL – Diagram (Acrobat (PDF) 115kB Feb8 21)
- Explanation Task (Acrobat (PDF) 125kB Feb8 21)
Lines of Evidence
Evidence #1: Earth's average density is higher than the Moon's.
Evidence #2: Simulations of other star systems show that planets form when smaller objects collide.
Evidence #3: The Moon's orbit around Earth is tilted compared to Earth's orbit around the Sun.
Evidence #4: The composition of Earth and the Moon is similar near their surfaces. Their cores are different.
- Moon MEL – Evidence Texts BW Newly Revised 2019 (Acrobat (PDF) 867kB Jan14 20)
- Moon MEL – Evidence Texts Color Newly Revised 2019 (Acrobat (PDF) 601kB Dec30 19)
This Plausibility Ranking Task (PRT), which may be completed prior to using any MELs, helps students to understand the role of evidence in supporting or refuting models.
- Plausibility Ranking Task (Acrobat (PDF) 20kB Feb8 21)