Once upon a time, in a small town called Happyville, there lived two best friends named Alex and Lily. They loved playing outside and having fun. One sunny day, they discovered a magical book that could take them on exciting adventures. They opened the book and found themselves in a beautiful park.

As they explored the park, they noticed children running, jumping, and playing different sports. They saw kids playing soccer, basketball, and even doing gymnastics. Alex and Lily were amazed by how much fun everyone was having.

Curious, Alex asked a friendly girl named Emily why everyone was so happy playing sports. Emily explained, 'Sports are not only fun, but they also make our bodies strong and healthy. When we run, jump, and play, our hearts get stronger, our muscles grow, and we feel energized!'

Excited by this new knowledge, Alex and Lily decided to try some sports themselves. They started with a game of soccer. They kicked the ball, ran around, and laughed a lot. They felt their bodies getting stronger with every kick and run.

Next, they tried basketball. They dribbled the ball, shot hoops, and had so much fun. They could feel their arms and legs getting stronger with every jump and throw.