Expository writing

In school recently we have been talking about expository writing. I have thought about different ideas, so I decided that I would make them into one post but with only one example.

Why contacts are better than glasses:

For this argument I think contacts are better because of messing with them all day, contacts only make you put on and take off them once. That is why contacts are better than glasses.

Why dogs are better than cats:

Overall dogs are much more friendly. I think cats hide away too much. Unlike cats, dogs are much better at appreciating a new person. That is why dogs are better than cats.

Why headphones are better than earbuds:

When wearing earbuds you can hear everything around you, but when you wear headphones, the cushions block the outside sound. That is why headphones are better than earbuds.

My list for expository writing is endless, and these are some of my favorites. I’m wondering what your favorite expository writing topic is. Please tell me in the comments.