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Sun Our Star

Our Star, the Sun

Look up at the daytime sky. What do you see? The Sun! It's that big, bright circle that lights up our world. The Sun is like a giant campfire in the middle of our space neighborhood, which we call the s. It's not a planet. It's a star, just like the tiny twinkling ones you see at night, but it's much, much closer to us.

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The Sun is huge! It is so big that you could fit one million Earths inside of it. Because it's so big, it has a very strong pull that keeps all the planets, including ours, from floating away. This special pull is called gravity.

A Big Warm Hug

The Sun sends out a lot of light and warmth. We call this sunlight. Think about a sunny day at the park. You can feel the Sun’s warmth on your skin and see everything clearly because of its bright light. Without the Sun, Earth would be a very dark and cold place.

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Plants need sunlight to grow, which gives us and other animals food to eat. So, the Sun helps keep everything on Earth alive and well. It's always at the center of our solar system, with Earth and the other planets traveling around it in big circles called orbits.

When you draw a picture of the Sun, you probably use a yellow or orange crayon. That's a great choice! The Sun is a type of that glows with a bright, warm, yellow-orange light. This light is what makes our days bright and our world colorful.

Let's review what we've learned about our amazing star.

Ready to test your knowledge?

Quiz Questions 1/5

What is the Sun?

Quiz Questions 2/5

What would happen to Earth if the Sun suddenly disappeared?

The Sun is the most important star for us. It keeps our planet warm, bright, and full of life.