E. Studying the effect on the characteristics of a metal by treating it in various ways. Perform a small activity and note the observations. To begin with, take a safety pin, straighten it and fold it back to it's original shape, keep repeating the exercise until it breaks. Now record your observations on the following:
1. Determine how many times it took to bend the clip back and forth in order to break it. Also indicate the scientific reason that caused the safety pin to break and why it took those many times to break it.
2. Now try the above experiment with various types of heat treatment to see what effect they have on the metal.
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