To celebrate its 20th anniversary, Scholastic is re-releasing the ten original Magic School Bus titles in paperback. With updated scientific information, the bestselling science series ever is back! Rock collecting has never been quite like this! When the class forgets to do its homework, a fieldtrip through the Earth's crust, into the center of the Earth, and out through a volcano will teach them not to forget their assignments again - and then...

On a special field trip in the magic school bus, Ms. Frizzle's class goes into outer space and visits each planet in the solar system.

One twist of the dial and the Magic School Bus transforms into a time machine that travels back to the prehistoric age, making pit stops in the Mesozoic Era and meeting dinosaurs along the way.

Ms. Frizzle takes her class on a field trip to a beehive in her magic school bus.

When Ms. Frizzle and her student Arnold follow an underground passage beneath Craig's Castle Shop and find themselves in the middle of a siege of a 12th century English castle, they learn a great deal about both castles and the Middle Ages.

Ms. Frizzle takes her kids on a whirlwind tour, from the Arctic to the equator so they can see telltale signs of climate change.

On a special field trip in the magic school bus, Ms. Frizzle's class learns about the planets in the solar system.

When Arnold wishes he had more information for his family tree, Ms. Frizzle revs up the Magic School Bus and the class zooms back to prehistoric times. First stop: 3.5 billion years ago! There aren't any people around to ask for directions. Luckily Ms. Frizzle has a plan, and the class is right there to watch simple cells become sponges and then fish and dinosaurs, then mammals and early primates and, eventually, modern humans. It's the longest class...