1. For the purposes of the fine and decorative arts, metals have been used either in their simple state and in uncomplicated alloys.

2. Few substance on Earth equal the beauty of gemstones such as twinkling diamonds, green emeralds, red rubies, blue sapphires, and multicolored opals.

3. A most useful tool for analyzing the elemental composition of fossils is the electron probe, a modify electron microscope.

4. The Louisiana Purchase of 1803 increased the territory of the United States by approximate 846,000 square miles, practically doubling the area of the United States.

5. Some of the earliest mechanical devices were designed to raise water from streams for the irrigate of crops.

6. By 1900 several prominent technical institutions, including the Massachusetts Institute of Technology, fashioned its own educational offerings to meet the industrial needs of the United States.

7. Astronauts receive extensive training to prepare themselves both physically and psychologically for complexity and rigor of a space mission.

8. Taste buds, small sensory organ located on the tongue and palate, recognize four primary tastes: sweet, sour, salty and bitter.

9. Tunas migrate long distances over all the world’s oceans and occupy tropical , temperate, and even some the cooler waters.

10. The spice cinnamon and the drugs cascara and quinine all come from bark, the protective out layer of stems and roots of woody plants .

11. In 1916, United States suffragist Alice Paul founded the National Woman’s Party, a political party dedicate to establishing equal rights for women.

12. Bursae are fluid-filled sacs that form cushions between tendons and bones and protect them while movement.

13. Because its pitch cannot easily be altered, the oboe serves as the standard which by the symphony orchestra is tuned .

14. Silicon chips are reliable and cheap to produce in large numbers and are used them in computers, calculators, programmed household appliances, and most electronic applications .

15. Globally, the 1990’s stood out as the warmest decade for what we have weather records.

16. Psychoanalysis is a form of therapy that attempts to eliminate conflict by alter the personality in a positive way.

17. During the years he composed , Charles Ives was isolation from the music world; none of his major works was publicly performed.

18. Modern digital synthesizers, based on microprocessors, are virtually unlimited in the number and range of musical sounds it can produce.

19. The aim of the decorative arts is to beautiful our surroundings .

20. The snapper, a large-headed fish with a long dorsal fin, is named to its characteristic way of suddenly shutting its mouth.

21. Lake Superior, part of the United States-Canadian boundary , is a largest freshwater lake in the world .

22. The sunflower, the official state flower of Kansas, and is widespread in the prairies of the western United States.

23. Massive gains in computer speed, power, and reliably have been largely due to advances in silicon technologies and manufacturing processes.

24. The major purpose of the United States Department of Education are to ensure equal educational opportunity for all and to improve the quality of education.

25. The world’s water balance is regulated by the constant circulation of water in Liquid and vapor tom among the oceans, the atmospheric , and the land.