Bring the weight block bricks made out of sawdust, paper and mixed paper waste sawdust to compare physical characteristics density intact stability. Observe and record the results.
Do not put the weight block is made from sawdust. paper waste And sawdust mixed paper waste Compared the physical characteristics The preserved density observed and recorded.
The brick no weight made from sawdust, waste paper and sawdust mixed paper left. Comparison of physical characteristics of stability the original density, observe and record.