The Solar System

_{There are eight planets in our solar system.}

_{This is Mercury. It is the first planet in our solar system. It is the smallest planet.}

_{This is Venus. It is the second planet. It is the hottest planet. It is known as the Earth's sister planet.}

_{Earth is the third planet. It is the planet that I live on.}

_{Earth is the third planet. It is the planet that I live on.}