3.21: Planet Earth- Challenge 3
- Page ID
- 5359
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- 1. The high point of a wave is called the ___.
- crest
- 2. Earth's magnetic field is a clue that Earth's interior is made of ___.
- metal
- 3. Scientists have learned a lot about Earth's interior through the study of ___.
- seismic waves, Earth's magnetic field, and rocks
- 4. The lithosphere consists of the ___ and uppermost mantle.
- crust
- 5. Which layer of Earth is made up of mostly iron metal?
- Core
- 6. The ___ is made up of rock that is less dense than the mantle.
- crust
- 7. ___ crust is thinner and denser than continental crust.
- Oceanic
- 8. Which crust (Oceanic or Continental) is made up of basaltic rock?
- Oceanic
- 9. Continental crust is ___.
- felsic
- 10. Scientists know that the mantle is made up of rock based on evidence from ___.
- seismic waves, heat flow, and meteorites
- 11. The ___ heats up the mantle.
- core
- 12. Scientists can tell that the ___ is made of hot, solid rock from seismic waves, meteorites, and Earth's own internal heat.
- mantle