autonomously – adv. existing or acting separately from other things or people

challenge – n. a difficult task or problem; something that is hard to do

hands-on – adj. gained by actually doing something rather than learning about it from books, lectures, etc.

mine – n. a bomb that is placed in the ground or in water and that explodes when it is touched

Now it's your turn to use these Words in This Story. In the comments section, write a sentence using one of these words and we will provide feedback on your use of vocabulary and grammar.