You are walking on the street by an auto repair shop and see a puddle of water. but it's not just water. There is some sort of black liquid in the water. You look around to find out what it might be. You see a bucket of oil. You obviously think that someone must have spilt oil. Oil and the water don't seem to mix. It might be a little confusing now but it's just a thing called density. A lot of people have no idea why helium balloons float or why oil floats on water. Well if you're one of those people then you are in luck, so read on to find out why.
What is density? Density is a measurement of the amount of information on a storage medium Density works because one is more dense than the other, just like helium is less dense than the air.
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Well there is a perfect explanation for that question. Oil floats on water because of density and which ones are more dense. One question I had is can you mix them? Well actually you can't, even if you try to mix them the oil will just float straight to the top. The reason they don't mix is because the water is more dense than the oil, so if they had the same density than they could mix. but for now we have an awesome experiment to do at home.
Why do people care about density? People care about density because if you wanted to figure out for a project, it's one of the only way to find out which is more dense without tools. Another reason people care is because it is very interesting to have different colored water stack up like blocks. Density is also one of the coolest experiments you can do with stuff laying around your house, so go try it!
The experiments that have been done with density is to see how it works. It may seem like magic with liquids stacking on top of each other. They also have to see what is more dense for other experiments, or to invent something for the future for new and smarter people. Experiments are probably very important because like anything, you need to figure out how, and why what happens actually does happen. Some experiments can even be done at home with everyday items like an empty water bottle, food coloring, and water to make an amazing
I am doing this experiment to find the density of aluminum foil to see if it floats or sinks when placed in water. I hope to find how the density of aluminum foil changes when weight is added to the foil. I hypothesize that the boat will hold 20 pennies before sinking.
to get an idea of how I would do my real experiment and what apparatus
Finding the Densities of an Unknown Solid and Liquid in Order to Determine What they Are
density changes is quantum noise. It is very important to minimize or limit the amount of
In this experiment, there were several objectives. First, this lab was designed to determine the difference, if any, between the densities of Coke and Diet Coke. It was designed to evaluate the accuracy and precision of several lab equipment measurements. This lab was also designed to be an introduction to the LabQuest Data and the Logger Pro data analysis database. Random, systematic, and gross errors are errors made during experiments that can have significant effects to the results. Random errors do not really have a specific cause, but still causes a few of the measurements to either be a little high or a little low. Systematic errors occur when there are limitations or mistakes on lab equipment or lab procedures. These kinds of errors cause measurements to be either be always high or always low. The last kind of error is gross errors. Gross errors occur when machines or equipment fail completely. However, gross errors usually occur due to a personal mistake. For this experiment, the number of significant figures is very important and depends on the equipment being used. When using the volumetric pipette and burette, the measurements are rounded to the hundredth place while in a graduated cylinder, it is rounded to the tenth place.
To investigate the affect the material of a ball has on the bounce height of that ball where the drop height (gravitational potential energy), temperature, location, ball, and air pressure of the ball are kept constant.
Archimedes discovered Density when he was set on a mission to figure out if a craftsman had given the king a pure gold crown or had defrauded him with silver instead. Archimedes pondered this when he was in a pool. When he slipped himself into the pool he realized that some water had spilled over. Archimedes then had an epiphany and realized that the amount of water that spilled over was equal in volume to the space that his body took up. Archimedes then applied this epiphany to differentiating whether the king's crown was silver or gold. Archimedes put the Craftsman's crown and a pure gold crown of the same mass in two tubs of water. He observed that more water spilled over the sides of the tub when the craftsman's crown was submerged.
Part A of the experiment, we were measuring the density of water. In this part, we measured by difference by measuring the mass of the empty graduated cylinder which was 46.35 grams and then added 25.0 milliliters of water to it. When subtracting by difference, our mass of the water was 25.85 grams. This was close to the measurements of the water added to the graduated cylinder. The density of the water was 1.0 grams/milliliters.
To improve part 2 of this experiment more accurate measurements are needed. More time needs to be spent on obtaining an accurate measurement of water up to the 10 ml line. Temperature also needs to be taken before each trial to accurately calculate the mean density for each trial. Adding a trial with a liquid, other than water, would require changes in the numbers used to calculate the density of the metal, but could provide additional data to confirm the density found.
Fresh water pours from underwater springs and mixes with the ocean's salt water forming a swirl reminiscent of oil mixing with water.
Each water molecule consists of one oxygen atom and two hydrogen atoms. The oxygen atom (or the apex of the water molecule) bears a slight electronegative charge while hydrogen possesses a more positive one. Because opposite charges attract, the water molecules are drawn together. When an oxygen atom is linked to a neighboring molecule's hydrogen atom, a bond called a hydrogen bond is formed. In an ice crystal the hydrogen bonds to give the shape of the crystal so that the grid of molecules surrounds relatively to large spaces. In a liquid form, water has no such spaces; so ice is less dense and will float on liquid water. If not for this, great bodies of water would freeze from the bottom up without the insulation of a top layer of ice and all life in the water would die.
Since the days of Aristotle, all substances have been classified into one of three physical states. A substance having a fixed volume and shape is a solid. A substance, which has a fixed volume but not a fixed shape, is a liquid; liquids assume the shape of their container but do not necessarily fill it. A substance having neither a fixed shape nor a fixed volume is a gas; gases assume both the shape and the volume of their container. The structures of gases, and their behavior, are simpler than the structures and behavior of the two condensed phases, the solids and the liquids
Gases are also very low in density. The average gas is 1000 times less than that of the average liquid. The volume of gas varies with many things including temperature and pressure. These are explained in Charles's and Boyle's laws.
Then the ethanol will be divided. In the second experiment we are going to distillate ethanol solution, which involve measuring both the volume and the mass of the ethanol solution, we can work out the density from the volume and mass. We will then compare the density of the solution with that of pure water and pure ethanol; it is possible to calculate the percentage concentration of the solution. The third practical will be oxidising ethanol to ethanoic acid, in this experiment we will start with 96% ethanol.
Density is “Is a measure of mass per unit of volume. Density is what helps make things float, anything that has a density less than one it floats. The more density the object has, the higher the mass per volume. For example, take a sponge, most of the artificial ones are made out of foamed plastic. Therefore sponges hold or contain a lot of density. If you were to take a sponge and melt it into a plastic soup without the bubbles, it will stay one pound but it will become much denser. Density is probably the most important thing thats needed in order for an object float.1,000.00 kg/m³ is the equation for the density of water.(chemforkids.com)