If you were going to travel around the surface of the moon in an edible vehicle, what might that vehicle look like?
Second graders at Tulsa's Discovery School are finding out apples and oranges make great wheels, and gummy worms make a pretty good air tank.
Stephanie Coy is a second grade teacher at Discovery School of Tulsa.
"This is our edible lunar vehicle project," she explained.
The project is the end of an entire unit on the moon, which includes some engineering and design. The student teams must design and build a lunar vehicle out of edible items – fruit, vegetables and candy.
Once built, they've got to test them.
Here's the idea: put the vehicle on the ramp, give it a little push and see how far it will roll.
Some did well, others didn't do so well, but this is the testing phase so there is still a chance to make some modifications.
The big finish of the project is a sort of space age competition.
Some students at Indiana University Purdue University Columbus used designs furnished by the Tulsa students and built similar vehicles.
They used a Skype-like hookup so they could run them simultaneously.