Albino tigers are becoming extinct because of illegal hunting.

Apples and oranges are similar because they are both fruits.

When the Marshall Islands had a drought there was not enough water. Ms. O'Neill had to use ground water from a well to do her laundry. Bottled water was brought in by boats for drinking.

The writing is set up as a starting date and an ending date. Events happen in order.

The article discusses habitat loss of many creatures living in the Congo Rain Forest and then explores ways to prevent such loss.

Both Friday and Saturday are great days because they are part of the weekend, but on Friday you still have to spend part of the day at school and on Saturday you can do whatever you want all day long.

Eating cereal is easy. First, get out your stuff from a cupboard and refrigirator. Next, pour your cereal in the bowl, add milk, and enjoy.

The writing explains how things are the same and different.

Lobster is more expensive than fish sticks.

The writing tells you what happened and then explains why it happened.

How to make cookies. First, get your materials. Then, make your dough. Lastly, cook your dough at 400 degrees for 10 minutes.

because, since, if/then, due to, as a result, for this reason,  are signal words for this text structure.