During a lab activity a group of students was instructed to determine the density of a rock. Steps Use the balance to determine the mass of the rock. Use water displacement to determine the volume of the rock. Put 50 milliliters of water in the graduated cylinder, drop the rock in and measure the increase in the volume of the water. This will be the volume of the rock. Use the formula D=MV to calculate the density of the rock. Results Mass of the rock = 6.4 grams Volume of the rock = 0.5 mL Density = 6.40.5 = 12.8 g/mL Were the students measuring a physical property or a chemical property of the rock?

In meteorology, a  cloud  is an aerosol consisting of a visible mass of minute liquid droplets, frozen crystals, or other particles suspended in the atmosphere of a planetary body. nephology is the science of  clouds, which is undertaken in the  cloud  physics branch of meteorology.cirrus clouds  usually describe clouds high in the atmosphere that can include wispy clouds, typically with ice crystals. variations include cirrus, cirrocumulus and cirrostratus as defined by the cloud's position in the atmosphere.layered stratus clouds  have both flat tops and bases, and can appear as if they take up the whole sky, stretching from horizon to horizon. other combinations and variations include stratus, stratocumulus, nimbostratus and altostratus.cumulus clouds  often pile up in multiple layers of the atmosphere, representing clouds that develop vertically. cumulus clouds often look like pillars with anvil-type tops or columns of clouds stacked vertically. variations include cumulus, cumulus-congestus, cumulonimbus and altocumulus.