Science Project Summary:

Skateboard bearings

Featured science projectScience project video Intermediate 5 < 3 days $50-$100 Readily available [+] More info
Difficulty: Intermediate 5
Cost ($): 60
Time required: < 3 days
1 hour for preparation, 1 day for science fair project
Availability of materials: Readily available
Easily found at a skateboard store
Required Skills: None
Safety concerns:

Basic safety requirements

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Why are some skateboards more expensive than others? One of the factors influencing pricing, is the quality (and consequently, the price) of its bearings. This science fair project aims to find out how the the quality of the bearings of a skateboard affects its performance. Tests will be carried out on 5different types of bearings
Procedure preview:
1.    The independent variable of this science fair project is the type of bearing used on the skate board. The dependent variable is the distance travelled by the skateboard from the ramp. This is determined  using a measuring tape. The constants (control variables) are the elevation of the ramp, the length of the ramp, the surface condition of the ramp and the floor surface. 2.    Purchase five different brands of skateboard bearings. Label them from A to E, from the  most costly to the least costly. An assumption is made that the bearing which is the most costly is manufactured .....