By Alex S. (first grade)
Chapter 1—Stars
Stars are gigantic balls of gas. The sun is a medium sized star. A star called Betelgeuse is as wide from the sun to Mars. Betelgeuse is the shoulder of Orion.
Chapter 2 Planets
Planets are big balls. Earth is the only planet with life that we know of. Saturn’s rings are chunks of ice and rocks. Mars is sometimes used in movies for aliens.
Chapter 3 Black Holes
Black holes are like tornadoes in space. They suck everything in them.
Chapter 4 The Big Bang
The Big Bang is when the universe started. The whole universe was a tiny dot. Then the dot exploded. That’s when our universe started. This huge explosion is called the Big Bang.
Chapter 5 The Moon and Asteroids
The moon has craters. Those craters are from asteroids. We usually see the moon when it’s night. Sometimes we can see it at noon. Asteroids sometimes have craters from smaller asteroids.