All living animals need the sun to survive.  Without it they would die.  This is an example of cause and effect and is how I know that the author uses cause and effect to write this article.  Also, the sun controls the food that we eat and the air that we breathe.  This is another cause and effect.

The author uses cause and effect structure to organize this text.  Cause and effect explains why things happen.  For example, one cause is that plants use sunlight to make food.  The effect of this is that they give off oxygen. Another cause is that for six months, the northern half of Earth leans toward the sun.  The effect of this is that it is Spring and Summer in this part of the world.  These examples help me to understand that the author is using cause and effect structure.

The author uses cause and effect structure to organize this text.  Do you know that the sun is really a giant star at the center of our solar system? The sun is a large ball made of many kinds of gases.  It give light and heat to the planets that move around it.  These planets make up our solar system.  This is how I know that the author uses cause and effect structure.

This article is about the sun and how it impacts all of the planets around it, including Earth.  The main idea is that the sun helps all things grow. One key details is that plants use sunlight to make food.  Another details is that animals and people eat plants and breathe in oxygen.  This is how I know that the main idea of this article is that the sun helps all things grow.