FETCH! with Ruff Ruffman
'Eureka' Is Not a Brand of Dog Food
Ruff's owner is running him ragged making him fetch, so he sends Emmie and Shreya to build him a vehicle he can ride on so he doesn't have to run. He then sends Jay and Marco to an invent another device that will make his life easier.Educational Objectives: Forces and motion; data collection; engineering design process.
Rating: -- Length: --