shell crust
51earth — /errth/, n. 1. (often cap.) the planet third in order from the sun, having an equatorial diameter of 7926 mi. (12,755 km) and a polar diameter of 7900 mi. (12,714 km), a mean distance from the sun of 92.9 million mi. (149.6 million km), and a… …
52nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… …
53sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …
54star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… …
55M. King Hubbert — Born Marion King Hubbert October 5, 1903 San Saba, Texas, U.S. Died October 11, 1989(1989 10 11) (aged 86) Nationality American Occupation …
56List of My Life as a Teenage Robot episodes — Party Machine redirects here. To view the type of political organization, see Political Machine The following is a guide to the episodes of the Nickelodeon animated television series My Life as a Teenage Robot. The show officially began on… …
57plate tectonics — plate tectonic, adj. Geol. a theory of global tectonics in which the lithosphere is divided into a number of crustal plates, each of which moves on the plastic asthenosphere more or less independently to collide with, slide under, or move past… …
58earthquake — /errth kwayk /, n. 1. a series of vibrations induced in the earth s crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating. 2. something that is severely disruptive; upheaval. [1300 50; ME erthequake …
59Noble gas — Group 18 Period 1 2 He 2 …
60List of My Life as a Teenage Robot characters — This is a list of characters from the Nickelodeon animated series My Life as a Teenage Robot. Contents 1 Main Characters 1.1 Jenny Wakeman 1.2 Brad 1.3 Tuck …
