Sunday, October 26, 2014

5th Science - 10/27/14

https://docs.google.com/document/d/1LprbWEtfgYvfXlXfBnDjaCCemL8zCzX9XyU2rA1r8yY/pub

Homework:

10/29 - Copy and define vocabulary words in NB

1.  The westerlies are west-to-east winds that dominate the middle latitudes of both hemispheres on Earth. These winds blow between 35 degrees and 55 degrees of latitude.

2.  The trade winds (also called the trades) are strong easterly winds that blow through the tropics and subtropics. They blow from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere. 

3.  The sextant is an astronomical instrument that is used to determine latitude for navigation. It does this by measuring angular distances, like the altitude of the sun, moon and stars. The sextant was invented independently in both England and America in 1731. The sextant replaced the astrolabe. The word sextant comes from the Latin word meaning one sixth.  

4.  Rapids are parts of a river that are shallow, rocky, and have strong currents. 

5.  A pole star is a star that is located almost due north or due south, which makes it useful for navigation. Polaris is the pole star of the Northern Hemisphere. There is no pole star for the Southern Hemisphere; the constellation Crux, however, is around the south celestial pole.  

6. A glacier is a slowly-moving river of snow and ice.