Our Cosmic Neighborhood: How the Solar System Supports Life
Earth is a very special place. It is the only planet we know of that has life, but Earth cannot do it all alone. Our planet is part of a huge neighborhood called the solar system. This neighborhood includes the Sun, eight planets, many moons, and millions of asteroids and comets. Every part of this system plays a role in making sure Earth stays a safe and healthy home for plants, animals, and humans.
The most important member of our solar system is the Sun. The Sun is a massive star at the very center of everything. It provides the heat and light that all living things need to survive. Without the Sunās energy, Earth would be a dark, frozen rock floating in space. Plants use sunlight to make food through a process called photosynthesis. Since animals and humans eat plants, almost all the food on Earth starts with energy from the Sun. Additionally, the Sunās gravity is what keeps Earth in a steady orbit. This prevents our planet from drifting away into the cold, deep reaches of outer space.
- Photosynthesis:
- The process by which plants use sunlight to create food.
- Gravity:
- An invisible force that pulls objects toward each other.
- Orbit:
- The curved path an object takes around a star, planet, or moon.
- Asteroid:
- A small rocky body orbiting the sun.
- Goldilocks Zone:
- The area around a star where temperatures are just right for liquid water to exist.
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Preview questions from this passageShowHide
- 1What makes Earth unique compared to the other planets mentioned in the passage?
- 2Why is the Sun considered the most important member of our solar system?
About this informational passage for 4th Grade
āOur Cosmic Neighborhood: How the Solar System Supports Lifeā is a informational reading passage about Solar System, written for 4th Grade. It takes about 3 minutes to read (507 words) and comes with an interactive quiz and a printable worksheet with comprehension questions and an answer key.