www.nasa.gov/audience/forstudents/9-12/features/index.html
First off, choose what bandwidth you want, (the larger the faster the loading).
Then choose your guide, your guide will tell you a few things so turn up your volume ( also at the end, when you answered all the questions your guide will tell you if you are good to go.)
Now select your mission , then click start. Now click plan misson, and the questions will appear. It takes a while to load. Answer the questions, if you do not know the answer there is a button on the bottom of the screen named research, this will take you to a page where you can find the answers to the question.
Once you have chosen you answer click submit. When you answered all the questions, your guide will come and tell you if you are ready to launch. The question you got wrong will be shown to you. If you got all the question right you should be abe to choose another mission.
