1. Margaret Mead studied many different cultures and she was one of the first anthropologists to photograph hers subjects.
2. Talc, a soft mineral with a variety of uses, sold is in slabs or in powdered form.
3. During the 1870’s iron workers in Alabama proved they could produce iron by burning iron ore with coke, instead than with charcoal.
4. Geologists at the Hawaiian Volcano Observatory rely on a number of instruments to studying the volcanoes in Hawaii.
5. Underlying aerodynamics and all other branches of theoretical mechanics are the laws of motion who were developed in the seventeenth century.
6. Was opened in 1918, the Philips Collection in Washington, D.C., was the first museum in the United States devoted to modern art.
7. A mortgage enables a person to buy property without paying for it outright; thus more people are able to enjoy to own a house.
8. Alike ethnographers, ethnohistorians make systemic observations, but they also gather data from documentary and oral sources.
9. Basal body temperature refers to the most lowest temperature of a healthy individual during waking hours.
10. Research in the United States on acupuncture has focused on it use in pain relief and anesthesia.
11. The Moon’s gravitational field cannot keep atmospheric gases from escape into space.
12. Although the pecan tree is chiefly value for its fruit, its wood is used extensively for flooring, furniture, boxes, and crates.