Highlight It! Touch the Highlight It! button below the level you just read, then highlight the words that tell the main idea in each paragraph.

Highlight It! - 1

Highlight the text that helps you answer the prompt.

Your work is saved automatically, but are you sure you want to exit before you have submitted your work? Are you sure you want to submit? Are you sure you want erase all your highlights?

Highlight It! - 2

Highlight the text that helps you answer the prompt.

Your work is saved automatically, but are you sure you want to exit before you have submitted your work? Are you sure you want to submit? Are you sure you want erase all your highlights?

Highlight It! - 3

Highlight the text that helps you answer the prompt.

Your work is saved automatically, but are you sure you want to exit before you have submitted your work? Are you sure you want to submit? Are you sure you want erase all your highlights?

What is the main idea of the whole text? Type your answer here.

Answers

There are many possible correct answers. Here is one:
Rocks can give us information about our world, the Earth