Earth/Geognosy/Quiz

The planet Earth is made up of three main shells: the very thin, brittle crust, the mantle, and the core; the mantle and core are each divided into two parts; all parts are drawn to scale. Credit: Eugene C. Robertson, USGS.

Geognosy is a lecture focusing on the structure and composition of the astronomical object Earth. It is an independent lecture.

You are free to take this quiz based on geognosy at any time.

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Quiz

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1 Yes or No, Geognosy is the science and theory of the constitution of the Earth.

	Yes
	No

2 The geological study of the Earth's structure and composition is called

.

3 True or False, All or nearly all spheroidal, rocky objects have a crust.

	TRUE
	FALSE

4 Earth is composed primarily of?

5 True or False, All or nearly all spheroidal, rocky objects have a mantle.

	TRUE
	FALSE

6 Observations of Earth have benefited greatly from what phenomena?

	a dense, opaque atmosphere
	lightning
	extensive meteorite cratering
	a flattening out
	liquid hydrocarbon lakes
	the reflected light of silicates

7 True or False, All or nearly all spheroidal, rocky objects have a core.

	TRUE
	FALSE

8 Phenomena associated with Kepler-36b?

	has a gaseous surface
	about 30% of its mass is iron
	about 4.5 times the mass of Earth
	has a rocky surface
	discovered by the Kepler spacecraft
	about 1.5 times as large as the Earth

9 True or False, The XRS aboard the MESSENGER spacecraft maps mineral composition.

	TRUE
	FALSE

10 Yes or No, Evidence from geoseismology, heat flow at the surface, and mineral physics is combined with the Earth's mass and moment of inertia to infer models of the Earth's interior - its composition, density, temperature, pressure.

	Yes
	No

Hypotheses

Main article: Hypotheses

1. The constitution of astronomical objects can vary as much as the variation of electromagnetic-type forces or interactions.

See also

• Green astronomy/Quiz
• Planetary science/Quiz
• Radiation astrochemistry/Quiz
• Radiation astrogeography/Quiz
• Radiation astrohistory/Quiz
• Radiation astronomy/Quiz
• Theoretical radiation astronomy/Quiz

External links

• International Astronomical Union
• NASA/IPAC Extragalactic Database - NED
• NASA's National Space Science Data Center
• The SAO/NASA Astrophysics Data System
• SDSS Quick Look tool: SkyServer
• SIMBAD Astronomical Database
• SIMBAD Web interface, Harvard alternate
• Spacecraft Query at NASA.
• Universal coordinate converter

{{Radiation astronomy resources}}