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History of the Earth: Lesson for Kids

Instructor: Corrie Boone

Corrie holds master's in elementary education, taught elementary ESL in the public schools for 5 years, and recently was teaching EFL abroad.

Come dive deep into the creation of the Earth! Learn about how the Universe, the planets, the moons, asteroids, and comets all started with a big bang.

Welcome to Earth

Do you live on Earth? Of course you do! We all do. But do you know were the Earth came from? Or how old it is? You've lived on this planet your whole life, and probably don't know about how Earth came to be. Has it always just been there? In this lesson, we will dive deep into the creation of the Earth!

The Big Bang

The Earth began with a big bang, literally. About 15 billion years ago, the Universe was nothing more than a tiny pinpoint of mass. Then about 13.8 billion years ago, with a lot of energy and a lot of heat, the tiny mass exploded (an event we call the Big Bang), opening up the Universe we live in today for even more creation.

An Explosion Like the Big Bang
The Big Bang

Hard to picture? Imagine dropping a water balloon out of your window onto the ground. When the water balloon hits the ground, it breaks and the water spreads out over a much larger area than the size of the balloon, right? Well, that's what happened with the Big Bang. The Universe was like the water balloon (except much, much smaller), and then it exploded and spread out into something much, much larger.

But What About Earth?

When this happened, the Universe was too hot for just about anything. However, over time it cooled down and things started to happen. Everything in the Universe began to spin and create celestial objects, including our Sun. Then over even more time, the objects in our solar system began to develop around the Sun.

The Solar System
The Solar System

The Earth we live on today was formed about 4.5 billion years ago. Remember how the Universe was spinning and made the Sun? Well, that also caused dust, debris, rocky particles, and gases to join together and harden, forming planets, one of which we call Earth. Over time, more and more rocky bits joined the mass and gravity made them stay, making the mass bigger, like Earth is today. This process is called accretion.

But just like the Universe when it first opened up, when the Earth was first formed it was too hot even for water, much less anything living. Over time, the planet cooled down and hardened, allowing liquid water to form and creating our oceans, rivers, lakes, and streams. Most other planets kept cooling down after their formation and all their water has frozen. But amazingly, the Earth has remained just the right temperature for water and life.

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