Again, easily extended for older children by adding two ramps so that comparisons can be made, applying cloth to the surface, then vaseline, to see how those affect rolling speed, etc.

Ramps in the Science Center

Again, easily extended for older children by adding two ramps so that comparisons can be made, applying cloth to the surface, then vaseline, to see how those affect rolling speed, etc.

Our rock provocation....inspired when a student brought in a few rocks for our nature collection.

Our rock provocation....inspired when a student brought in a few rocks for our nature collection.

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