1. a) When were aerial photos first taken? They were first taken during the 1850s.

1. b) How were the cameras carried high above the ground to take these early aerial photographs? In the 1850s, cameras were carried by kites. Later in the century, cameras were carried by hot air balloons. During the 20th century, airplanes and satellites were starting to be used to take aerial photographs.

2. What types of things are aerial photographs now used to study? They are used to study: farm size, crop plantings, soil erosion, the flow of traffic in cities, land uses, drainage patterns, and vegetation patterns. They are also useful for: archaeological studies, meteorological observations, crime detection, and spying.

4. In what season and at what time of day was the stereo pair in Fig 4. In what season and at what time of day was the stereo pair in Fig. 6-2 taken? Give evidence to support your answer. (This question is a true test of your ability to interpret aerial photographs)

There are several clues about the season and time of day when these aerial photos were taken. Season: There is no snow on the ground There are no boats or yachts in the marinas What do these clues indicate? This photo was taken in early spring or late fall.

Time of day: Traffic on the Gardiner Expressway and other roads in very light The parking lots aren’t so full What do these clues indicate? This photo was most likely taken on a weekend (probably a Sunday morning)

Chapter 6 key idea: In what ways are aerial photographs an essential tool in geographical research and study? Write a comprehensive answer to this question on your title pages. Study tip #2: Answering the key question(s) after reading the chapter is very helpful!