molecular freezing-point depression
21Ernst Otto Beckmann — Infobox Scientist name = Ernst Otto Beckmann image width = caption = Ernst Beckmann birth date = birth date|1853|7|4 birth place = Solingen, Germany residence = nationality = death date = death date and age|1923|7|12|1853|7|4 death place = Berlin …
22Van 't Hoff factor — In physical chemistry, the van t Hoff factor i is the number of moles of solute actually in solution per mole of solid solute added. Equivalently, i refers to the ratio of true molecular mass to calculated molecular methods by colligative methods …
23Winter service vehicle — A winter service vehicle (WSV), or snow removal vehicle, is used to clear thoroughfares of ice and snow.cite news|url=http://news.bbc.co.uk/1/hi/magazine/6342887.stm|title=How do snowplough drivers get to work?|publisher=BBC News Magazine… …
24James Walker (chemist) — Sir James Walker (6 April 1863 ndash; 6 May 1935) was a Scottish chemist.Born in Dundee, he was educated at the High School of Dundee, and though had passed the entrance examination for the University of St Andrews at sixteen, he instead went for …
25Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
26Glacier — This article is about the geological formation. For other uses, see Glacier (disambiguation). The Baltoro Glacier in the Karakoram, Kashmir, Northern Pakistan. At 62 kilometres (39 mi) in length, it is one of the longest alpine glaciers on… …
27radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …
28Glass — This article is about the material. For other uses, see Glass (disambiguation). Moldavite, a natural glass formed by meteorite impact, from Besednice, Bohemia …
29Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …
30Mercury (element) — gold ← mercury → thallium Cd ↑ Hg ↓ Cn …
