"Nothing excites them more than trekking through a mysterious labyrinth of underground chambers and tunnels." This reading comprehension introduces spelunkers, speleologists, and their shared fascination with caves.
This reading comprehension explains some concepts from physics and then looks at them in terms of a popular sport. ("What is acting on a soccer ball when it stays in one place until a player moves it?")
This biography of the first person to photograph single snow crystals works well in conjunction with science lessons or as a "stand alone" reading comprehension.
*Bentley's photographs are in the public domain and can be found in many places for free.