Editing Compound Sentences

Simple sentences have just one complete thought.

What if you combined them? A compound sentence joins simple sentences using a comma and and, or, but, for, nor, or so.

1. I like helping my mom cook. It's fun to taste our creations. (and)
2. We were going to go sledding. There was not enough snow. (but)
3. Special Challenge: Find two simple sentences from your essay. Add a comma and the word and, but, or or to combine the two sentences.

Revising from General to Specific

Your writing will sound more knowledgeable and interesting if you replace general ideas with specific facts that your readers might not already know.

• General idea: Whales are really long.

• Specific fact: Whales can grow up to 115 feet long.

• General idea: Dolphins and whales use sounds.

• Specific fact: Dolphins and whales use echolocation sounds to communicate and warn of danger.

1. Penguins use their black and white color as camouflage. Penguins use their black and white color as camouflage.
2. Penguins are great swimmers and can move quickly in the water. Penguins are great swimmers and can move quickly in the water.
3. The Gentoo Penguin can swim at speeds of 22 miles per hour. The Gentoo Penguin can swim at speeds of 22 miles per hour.
4. All penguins live in the Southern Hemisphere. All penguins live in the Southern Hemisphere.

Writing the Beginning Paragraph

The first sentence in your essay should grab the reader’s attention. It is called a “lead.” The following activity will help you write an effective lead sentence.

1. Explain why the subject matters:

Dolphins and whales are among the most majestic creatures on earth.

2. Provide a surprising fact:

Two of the smartest animals on earth live in the ocean.

3. Ask a question:

Did you know dolphins and whales come from the same biological family?

Your beginning paragraph should end with a focus statement. The focus statement names the two subjects and starts to compare and contrast them.

Prewriting to Select a Topic

Reading a Comparison-Contrast Paragraph and Essay

This lesson lets you discover how another student analyzed two topics in a comparison-contrast paragraph and essay.

Reading a Comparison-Contrast Paragraph

A comparison-contrast paragraph has three main parts. The topic sentence introduces two subjects and says something about them. The body sentences give details about how the two subjects are alike and different. The ending sentence sums up how the subjects are the same or different.

Sample Paragraph

1. Does the reading mostly focus on the way the two bikes are the same or different?
2. Name three ways the bikes differ.

Warm-Up for Comparison-Contrast Essays

Explanatory essays share information about a topic. One way to explain two topics that interest you is to write a comparison-contrast essay.