Inspired by the Scholastic children’s book series of the same name, The Magic School Bus created a fun way for kids to learn about the world around them. Ms. Frizzle was an innovative teacher who used unusual methods to get her students interested in different subjects. With the titular bus, the students could quite literally explore anything.

As The Magic School Bus celebrates its 25th anniversary this year, we  look back at the best episodes of the series. According to the Internet Movie Database, these ten episodes are as close to a perfect 10 as they can get.

Gets Lost In Space - S1.E01 (8.1)

The Magic School Bus was such a beloved book series by teachers and kids that it’s not surprising to see its very first television episode lead off the top 10. In this episode, The Magic School Bus “Gets Lost In Space,” just as its title implies.

Arnold’s cousin Janet came to visit him in Ms. Frizzle’s class after hearing about their “unusual” field trips. After being disappointed that they were going to the planetarium, Arnold convinced Ms. Frizzle to prove how unusual their trips would be. When the bus turned into a rocket, they got to explore the solar system, starting with Mercury and working their way away from the sun. Janet’s need to prove to her own class what happened caused an accident with the bus, leaving Ms. Frizzle stranded on Pluto while the class had to find a way to get her. The episode taught us all about the planets while demonstrating the value of teamwork.

Gets Eaten - S1.E04 (8.1)

In this episode, Ms. Frizzle paired up the students for a project. The pairs were supposed to bring in “two things that go together” and report on their connection. Unfortunately, Arnold and Keesha forgot all about it. While Keesha offered up her lunch — a tuna sandwich — Arnold had the pond scum on his shoe. They thought they were doomed to fail the assignment, but Ms. Frizzle gave them a slight assist.

She took the class on a field trip to the beach where everyone learned about the food chain. The episode shrunk the kids down to explore microscopic life consumed by larger life forms until Keesha and Arnold were able to find the link between their items. Like most of the series’ episodes, the story didn’t just teach kids about the subject at hand, but also to look deeper.

Blows Its Top - S2.E01 (8.1)

When Ms. Frizzle’s class attempted to put together the pieces of a globe, their efforts failed. Carlos believed it was because Dorothy Ann wasn’t helping, while the latter argued that research was important to know where all the pieces went. Ms. Frizzle flying out of a model volcano didn’t help the situation.

The class ended up going on a trip to discover a new island and see how volcanoes worked to change the surface of the earth. While Carlos and Arnold searched for the island above the water, Dorothy Ann and the rest of the class tracked her missing backpack under the surface. As Carlos found her backpack, he had the chance to use her research to learn about volcanoes. Dorothy Ann, on the other hand, experienced an eruption and the island formation firsthand. The show allowed each of them to walk in the other’s shoes for a change and, of course, give kids a cool lesson on volcanoes.

The Busasaurus - S2.E03 (8.1)

If you grew up with The Magic School Bus, chances are you also were a kid when Jurassic Park first hit theaters. “The Busasaurus” is very much a kid-friendly Jurassic Park.

In the episode, the entire class went back in time to the Cretaceous Period where the fossilized egg they were examining was from. Throughout the episode, Arnold and Phoebe tracked down his egg as it was stolen by different dinosaurs. The rest of the class got to do a little more casual exploring until everyone was at the mercy of a tyrannosaurus. For a change from the norm, Ms. Frizzle used the bus’ technology to make Arnold large enough to scare off the dinosaur so they could all return to the present.

Gets Ready, Set, Dough - S1.E09 (8.2)

A chemistry lesson and a surprise party were a winning combination for this episode. Even though the bus was experiencing some mechanical issues, the class still wanted to go on their field trip. The kids used the trip as an excuse to get Ms. Frizzle a cake for her surprise birthday party.

Of course, because of the mechanical issues, the kids ended up shrunk down far smaller than usual, having to find inventive ways to get a cake baked without Ms. Frizzle knowing. It wasn’t the usual episode with Ms. Frizzle giving a hands-on lesson, but the kids learned as they experienced things without her. The episode was a fun departure for the series.

In The Arctic - S3.E02 (8.2)

“In The Arctic” is all about heat. When Arnold’s hot chocolate suddenly lost its warmth, he gave Ms. Frizzle an idea for a field trip. That trip involved traveling to the Arctic, one of the coldest areas of the planet, to learn about insulation and temperature. The class had to learn just how insulation worked in order to get the bus’ engine warm enough to work in the cold — and to keep themselves warm.

Adult fans might be interested to know that both of Arnold’s voice actors appeared in this episode. Starting in Season 2, Danny Tamberelli took over the voice role. Original voice actor Amos Crawley appeared as a student who was in Ms. Frizzle’s class “last year,” a nod to the actor’s voice becoming too deep.

In The Haunted House - S1.E08 (8.2)

Part-ghost story, part-physics lesson, this particular episode sees Ms Frizzle’s class “In The Haunted House” for most of the half hour. While planning for their class concert, Carlos invented his own musical instrument. Unfortunately, his instrument doesn’t sound great with everyone else’s.

While trying to figure out a way to make the sound better, Carlos and the rest of the class ended up stranded as the bus broke down. The group found themselves waiting in a sound museum, prompting their exploration of the building and learning about sound vibrations. Some of the students believed the museum was haunted, but really, it was just full of strange sounds.

For Lunch - S1.E02 (8.2)

Arnold finally gets his wish in this episode. Ms. Frizzle allowed him to stay at school instead of attending the day’s field trip. Little did he know, he would actually be the trip’s location.

While Arnold stayed back at school trying to find a way to break a world record, the rest of the class shrunk down to be digested with his snacks. The class got to experience the esophagus, stomach, and small intestine, but had no interest in exiting through the large intestine. In a funny take, the group had to find a way to make Arnold burp so they could exit.

Inside Ralphie - S1.E03 (8.3)

“Inside Ralphie” is yet another episode that examined how the body worked. This time, as the title suggests, the class took a field trip in Ralphie’s body instead of Arnold’s.

The difference in this episode is that Ralphie knew what his classmates were up to. He actually helped them enter his body through a healing cut. Ralphie also got to watch a video feed of what his classmates were seeing inside his body as they searched for what was making him sick. They had their work cut out for them as Ralphie’s white blood cells attacked them, but in the end, they made it out just fine.

Under Construction - S3.E04 (8.3)

Sharing the top spot with “Inside Ralphie” is “Under Construction,” which provides something very different for the students to study. Instead of biology or human anatomy, the class gets to learn about construction and different structures firsthand. 

Wanda was supposed to watch her little brother before going on a field trip with the class. Her brother, however, accidentally shrunk Wanda and the class and played with the school bus as one of his toys. The class, trapped in Wanda’s bathroom, had to use various household items to build themselves an escape. It was certainly one of the most creative episodes of The Magic School Bus.