Layers of the Earth Quiz
Understand Earth’s crust, mantle, and core in about 10 minutes. Get a free 16 question score with clear bands that also checks real reasoning about plates, quakes, and magnetism.
08:30
Scale Explorer
How the Scales are Structured
DATA-BASED USER COHORTS
Who Usually Takes This Test?
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
Benchmarking
See How You Compare
Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Below is a preview of how scores are typically distributed across each scale.
Earth Layers Knowledge (ELK)
Earth Layers Knowledge (ELK)
Average
9.7
Normal range
7.6 — 11.8
min.
0
max.
16
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
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SAMPLE QUESTIONS
Example Questions From the Test
- Asthenosphere
- Outer core
- Lithosphere
- Lower mantle
- Lithosphere, asthenosphere, mesosphere
- Crust, mantle, core
- Crust, asthenosphere, inner core
- Mantle, crust, core
- The inner core contains no metals
- The mantle is entirely molten
- The crust is denser than the core
- The outer core is liquid
WHAT THE TEST MEASURES
About This Assessment
Layers of the Earth Quiz - Symptoms and Signs
How well do you understand the crust, mantle, core, lithosphere, and asthenosphere? This free, text-based Layers of the Earth Quiz uses 16 questions to test both essential facts and practical reasoning. Compare oceanic and continental crust, interpret seismic evidence, and connect Earth’s internal structure with plate movement and the magnetic field. It is quick to complete, and no sign-up is needed. Your total score places your knowledge in one of three clear performance bands.
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