Author
Joanna Cole
2 books here

The Magic School Bus Makes A Rainbow
Picture book · ages 4–8 · 520L · 2001
The MSB formula works best here: concrete visual phenomena, genuine science content, and Frizzle's unflappable classroom that makes experimentation feel safe and inevitable.

The Magic School Bus
Picture book · ages 4–8 · 620L · 1994
The most durable elementary science series ever written—genuinely teaches observation and scientific thinking without feeling didactic, and kids reread it obsessively.