Snow Formation
04 Feb 2008 Snow forms if the air in a cloud is below freezing. The water vapour then turns to ice instead of rain and the tiny ice..- 112
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How The Tilt Of The Earth Produces The Seasons
04 Feb 2008 This happens in two ways. The first is to do with how high in the sky the Sun appears. (NEVER LOOK AT THE SUN - your eye..- 130
general-articles
The Work Of A Fuse
04 Feb 2008 The main job of the fuse is to protect the wiring. Fuses should be sized and located to protect the wire they are connec..- 118
general-articles
Making Gas Out Of Crude Oil
04 Feb 2008 Their discovery could revolutionize heavy oil and oil sands production by leading to more energy-efficient, environmenta..- 106
general-articles
How To Measure Rainfall
04 Feb 2008 Rainfall is measured by catching water over a given time, in a suitable jar, usually with a funnel. The tedious part is ..- 119
general-articles
Fish Survives Months Without Oxygen
04 Feb 2008 Cooling water temperature during the fall prompts the crucian carp to store vast amounts of glycogen in its brain to kee..- 143
general-articles
How Drilling Works
04 Feb 2008 Once the site has been selected, it must be surveyed to determine its boundaries, and environmental impact studies may b..- 110
general-articles
The Life Of Dolphins
04 Feb 2008 Dolphins have outstanding vision in and out of the water. In the water, their eyes are protected from the sea water by m..- 126
speeches
Dipole And Molecular Attraction
04 Feb 2008 Melting points and boiling points are important physical properties. These properties reveal something about the forces ..- 189
speeches
Polarity Of Bonds And Molecules
04 Feb 2008 Polarity in organic chemistry refers to a separation of charge and can describe a bond or an entire molecule. Experiment..- 194
speeches
Human Saliva
04 Feb 2008 Body secretions are reflections of body health status and its harmony. To have vibrant and abundant good health, one sho..- 168
speeches
What Is Biogas?
04 Feb 2008 Biogas is actually a mixture of gases, usually carbon dioxide and methane. It is produced by a few kinds of microorganis..- 212
