How does a train move on the tracks?

A train moves with big, round wheels that roll along the metal rails. The rails are like a road, but they're special because they're only for trains. The wheels help the train go forward and the rails keep it going straight. When the train starts moving, its wheels turn and it rolls along the tracks, just like when you roll a ball!

A train moves with big metal wheels that roll on metal rails. The wheels are connected to the train and help it move forward. The rails are like a road, but they're made especially for trains and they keep the train moving in a straight line. When the train's engine pulls it forward, the wheels turn and move the train along the tracks. It's like when you roll a toy car on the ground, but a train is much, much bigger!

A train moves with its wheels that run along metal tracks or rails. The wheels are attached to the train's carriages and they turn as the train moves forward. The rails guide the wheels and keep the train moving in a straight line. The engine of the train provides the power to move the wheels, which makes the train go forward. The friction between the wheels and the rails also helps the train to move. It's a bit like a car with wheels moving on a road, but trains use tracks instead of a road to travel on.