5. A chemist observes that the iron fence outside his home has changed color and texture over time. Which would be a testable scientific question the scientist could ask? (2.5 Points) What will my neighbors think of me if I do not replace the fence? What could I have done to prevent the fence from changing color and texture? Will my friends think the fence is ugly? Which looks better, an iron fence or a wooden fence?

What could have possibly turned the iron fence into a different texture and  color. What chemical reaction has taken place in order to change the texture and color of the iron fence? If you live in a wealthy neighborhood, then chances are, they might think it looks lazy. Weather, Rainstorms, and high humidity cause iron fences to rust. You can probably repaint the fence a different color. As long as your friends aren't harsh with you, I don't think they'll think it's ugly. I would prefer a wooden fence and then repaint it from there.

Explanation:

I hope this helps :)

think about the oscillation of the toy shown in the video. when the toy is at the highest point of its motion, its velocity is zero and its acceleration is negative.