How does an ice crystal become a snowflake?

What is a saline lock? What are the different types of phosphorylation and where do they occur? How far from ground to the ozone layer? Is there a pattern of the number of days between solar and lunar eclipses? What are the funtions of the cell membrane? Which if these objects is an example of an organic form? What are two functions of lipids or fats in living organisms? Do colliding plates cause volcanoes? What is the physical state of water at -24 degrees? What are ms dynamite brother's called? What is Rhenium texture? Why does liquid turn into a solid when it's cooled? What is the average Yield of sassafras oil from one pound of sassafras albidum root bark? What is the 4 total magnification objectives? When a fluorescent bulb burns out should you be able to smell the gas? What are opportunistic parasites? What substance is analogous to a factory manger? What is savanna soil type? What machine separates gold from mercury? Which is a basic unit of a sugar molecules?