Liquids Like You've Never Seen Them Before

Ever wonder why certain liquids move more slowly than others? I know i did until the liquid density lab in science. In science we tested the density of liquids to see which ones would float on each other. Things that float have less density than the liquid underneath them that is why something may sink in water but float in ketchup. In this lab we worked with five different substances, none of which were water. Before this lab we learned how to measure the density of a liquid so we would be able to calculate which of the substances was more dense than the others. In order to calculate the density of a liquid you must first find out how much the container weighs once you have done that you can put the liquid in the container. Then weigh the liquid in the container then take the weight and subtract the weight of the container. However, thats just the first step to calculating density, after that you must find the volume of the liquid, and since liquids have finite volume and are the shape of it's container just find the volume of the container. Lastly, perform the formula "density=mass/volume" to find the density. Once my group did this to all five sustances we put them in our cup in order of most dense to least dense. The smell was horrific, but the learning was great. This lab was a great chance to learn about the density of liquids and get practice finding density.