I have two favorite things at the Museum of Arts and Science Center.  My favorite things are playing with racing cars and the x-ray machines.  My first favorite thing is playing with the cars.
I like cars because you build them with engines, gears, four washers, and wires.  You are able to build fast or slow cars and race them around a track. My second favorite thing is the x-ray room.  I like the x-ray room because you can build skeletons.  I like the Museum of Arts and Science Center because it has lots of toys.