*Question*
Given the fact that:  Rougher surfaces have more friction between them than smoother surfaces.  Answer the question:   Eric rubs together tissue paper and then sandpaper. The rougher tissue paper has less or more friction than the sandpaper?
**Answer**
more

*Question*
Given the fact that:  To reduce friction, oil is added to the engine.  Answer the question:   If Milo's bike chain is not moving well and he adds no oil to it, what will happen to the levels of friction the chain experiences increase or decrease?
**Answer**
increase

*Question*
Given the fact that:  The bigger the waves are and the more sediment they carry, the more erosion they cause.  Answer the question:   A fast-moving river that carries more sediment will cause less or more erosion?
**Answer**
more

*Question*
Given the fact that:  Areas near the equator are warmer than areas near the poles because they receive more direct sunlight.  Answer the question:   Sandra wants to go on vacation, and would like to go somewhere cold. Sandra will likely choose a place near the equator or near the poles?
**Answer**
near the poles