Question

fix the one word that is used incorrectly.
when ann makosinski was sixteen years old, she invented an led flashlight thats powered by body heat: just hold it in youre hand and it shines.

Explanation:

The word "you're" is a contraction of "you are", but here we need a possessive pronoun to show ownership of the hand. The correct word should be "your", which is the possessive form of "you" and is used to indicate that the hand belongs to the person.

Answer:

Replace "you're" with "your".