It has 4 wheels. It can carry many people.
It's a bus.
It's in the sky. It's a little slow.
It's a hot air balloon.
It has two wheels. It can only carry 2 people.
It's a motorcycle.
It's long, and travels underground. It's fast.
It's a subway.
They have two wheels. Some have motors, some don't.
They're scooters.
It's in the sky. It has two wings.
It's an airplane.
It has 4 wheels and it's not very big. It can carry only a few people.
It's a taxi.
It's on water. It can carry people and cars.
It's a ferry.
It can be very fast or very slow. It needs wind and it moves on water.
It's a sailboat.
It's in the sky. It's not very big, but it's very fast.
It's a helicopter.
It's very, very big. It can transport a lot of people on water at the same time.
It's a ship.