Irish ten-year-olds are among the best in the world when it comes to literacy, according to an international study published today.

21% of children in Ireland are classed as "advanced" readers, compared to just 10% internationally.

Below you can take the two Progress in International Reading Literacy Study (PIRLS) tasks as they were presented to students.

Planet Mars

The first is an online study of scientists' efforts to explore the planet Mars.

Some examples of the questions are below. Take the test here.

Elizabeth Blackwell

The second is a study of the interesting life and history of the first female doctor, Elizabeth Blackwell.