Here's a comprehension worksheet aimed at older kids. They need to read the text about Charles Darwin, then answer some questions at the end to demonstrate what they've understood.
Charles Darwin Comprehension
Darwin's visit to the Galapagos Islands had a huge impact on the formation of his Theory of Natural Selection. Use this writing prompt to get the kids imagining they are Charles Darwin in the Galapagos Islands. Can they describe what they see, and why this might be so interesting?
Here's a simple writing page for Charles Darwin, ideal for younger children and available in colour or black and white.