Revving Up
Topic: engines

In the TV show "REVVING UP," the Magic School Bus fails to pass inspection by Mr. Junkett, the vehicle maintenance inspector, and the kids are determined to get it running before the tow truck arrives to take it to the junk yard. With Ms. Frizzle's help, the class ends up inside bus's engine for an explosive adventure where they learn how gas plus air plus a spark make the engine run.