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Does the type of sand affect the durability of bricks Featured science projectScience project video

Observation

The brick made from coarse sand is more durable than that made  with  fine sand. The brick made from coarse sand lasted an average of 2.6 drops while the brick made from fine sand only lasted  an average of 1.6 drops.
 

Type of sand used Number of times the bricks are dropped before they break Average
  1 2 3 4 5
Fine sand 1 2 2 1 2 1.6
Coarse sand 2 3 3 2 3 2.6
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Complexity level:
7
Project cost ($):
90
Time required:
5 days for preparation, 1 day for observation
Material availability:
Access to an industrial oven/dry box or kiln is required, in order to achieve temperatures required for baking the bricks.
Safety concerns:

Basic safety requirements