Sedimentary Rock

While we were studying about rocks and minerals, B and I made a small simulation of how sedimentary rock is formed. The first thing we did was gather our materials. M and B collected different materials to form our rock. They collected things like shale, sand, dirt, clay, gravel, and small pebbles. The other thing we needed for out experiment was a glass jar about 1/2 full of water. We used about a 1L glass jar. B said that this jar represented the ocean. We then put our samples in order of the particle size from largest to smallest. We put the pebbles in the jar, or in our ocean starting with the largest. The pebbles settled very easily and quickly at the bottom of the ocean. So then we added some gravel. After we added the gravel B observed that he couldn't see in the water very good anymore. We decided to let the gravel settle for a day. After adding each sample the water was clouded, so we let the particles settle for a day and then added an other component. B noticed that the smaller particles fell down and filled in the spaces between the larger rocks in the layer below. When we were all done adding our samples we let the water completely evaporate. This took more than a few days, but when the water was gone we had our very own sedimentary rock.