Introduction
The scope of my research is orange buoyancy. Buoyancy is if something floats or sinks in water or other fluids. Normally we take into perspective the object’s weight and that things which are really light usually float. We never think about how something that is big and heavy like a big ship can float. Although big ships are very heavy they can float because they have a very large volume and take up a lot of space. This particular experiment will mainly focus on whether an orange floats or sinks in water. My prediction was that the orange would float since it weighed less than the orange with the rind\peel on. This experiment will allow people to get to the bottom of why an orange behaves the way it does and also give people an
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In this particular experiment it will be water. To indicate whether an object is buoyant is defined by Archimedes’ Principle which states that any object in a fluid is buoyed up by a force which is equivalent to the weight of the fluid supplanted by the object. When you put an orange in water two forces are acting on the orange in antagonistic directions. Gravitational makes the orange sink while the buoyant force makes the orange float. Gravity draws the orange down with a force that is the same as the weight of the orange.
While the buoyant force pushes the orange up with a force that is the same as the amount of water that the orange supplanted. If the orange can supplant a volume of water that is the same or is greater than the weight of the orange then it will be buoyant and therefore float.
While making the orange weigh a little more, the peel of an orange helps supplant enough water to make the unpeeled orange float. The peel of an orange contains many small pockets of air that contribute to the unpeeled orange being less dense than water and floating. When the peel is removed the orange does not supplant a sufficient amount of water to prevail over gravitational force, the orange then becomes denser than water, and hence it sinks to the bottom of the
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What do you notice about the orange? Does the orange float or does the orange sink to the bottom of the surface?
• After that, remove the peel further known as the rind from the second orange
• Slowly and carefully without letting any water out, put the second orange in the second glass or bowl. What do you notice about the orange? Does the orange float or does the orange sink to the bottom of the surface?
• Write a summary about the results that you got from this experiment. You will notice that the results are not the same, there is a slight difference.
Processing of findings
When I first put the orange in the bowl of the water, it floated on the surface, after I removed the peel it sunk to the bottom. The reason being is because when you remove the peel of the orange (and all the air pockets) it increases its density greater than water, making it sink to the bottom. The peel or in other words the rind is full of small air spaces which assist giving it a low density than water making it float on the
To measure velocity we had to get an orange and let it flow down a
Investigating the Effects of Varying Sugar Concentration on the Amount of Osmotic Activity Between the Solution and Potato Tubes
I added ½ tablespoon of baking soda to 4 cups of water. I added a small drop of liquid soap to the water and stirred to mix. I used the end of a straw and cut out 20 circles of spinach leaves. I pulled the plunger completely out of the syringe and put the leaf circles into the syringe. Next I pushed the plunger back in. I used the syringe to suck up the baking soda water until the syringe was about ¼ full of liquid. I placed my finger over the end of the syringe and pulled back on the plunger as far as I could without pulling the plunger out. I repeated this step three times. All the leaf circles sunk to the bottom of the liquid. I placed the spinach into a clear glass with about 2 inches of baking soda solution. I blocked out all light. I set the lamp with a compact florescent light bulb. I placed the glass in front of the lamp. I counted the number of circles that floated after each minute for 20 minutes (positive control). I created a negative control by not placing compact florescent light bulb and not placing the glass in front of the lamp. I counted the number of circles that are floating. I repeated the experiment with fresh circles and used regular water plus soap for all steps instead of baking soda and soa...
This occurrence can be explained through the process of osmosis. The increase in mass as well as the increase in turgidity, in the potato tubes immersed in low sodium chloride concentration solutions is understood to be a hypertonic. Since the solution is hypertonic, the water molecules will diffuse into the area of lower water concentration (the potato tube) in order to achieve equilibrium. Alternatively, the decrease in mass in the potato tube submerged in highly concentrated sodium chloride solutions can be explained by its immersion in a hypotonic solution. As sodium chloride solution is less concentrated in water molecules than the potato tubes, the decrease in mass and loss of turgidity results from the net movement of water leaving the potato tube, which is higher in osmotic pressure, and diffusing into the solution.
The egg appeared shriveled after removing it from the sucrose because of the movement of water out of the egg. The sucrose solution was hypertonic so water moved out of the egg from an area where water was more concentrated to the outside of the egg where water was less concentrated due to the high amount of sugar or solute. The acetic acid in vinegar did remove the shell from the egg, because the egg required two days to completely remove the shell, some water did move into the egg causing its initial mass without the shell to be higher than the egg's mass with its shell. Whenever the egg was transferred from the sucrose to the distilled water, the concentration of water outside the shriveled egg was greater than the water concentration inside the egg; therefore, water moved into the egg until equilibrium was reached. At that point, movement into and out of the egg continued with no net movement of water
Acoustic levitation takes advantage of the properties of sound to cause solids,and liquids to float. The process can take place in normal or reduced gravity. To understand how acoustic levitation works, you first need to know a little about gravity, air and sound.
To investigate the osmotic effect of changing the concentration of sucrose solution; distilled water, 20% sucrose solution, 40% sucrose solution, 60% sucrose solution on the change in mass of potato cylinder after 30 minutes of being in solution.
states that "a body immersed in a fluid is buoyed up by a force equal the weight
The materials needed are three small beakers (150 or 250 ml), a potato, a knife to cut the potato into pieces, a ruler to measure the potato, something to weigh the potato pieces, a timer, a calculator, and three solutions: distilled water, 10% sucrose, and 50% sucrose. The point of this experiment is to calculate the percent change in the mass before and after soaking the potato in the three different solutions. Create your own hypothesis before beginning the experiment. My hypothesis is that the potato soaked in water will have a higher mass after soaking, and that the potato soaked in the 10% sucrose and 50% sucrose will remain the same. Make sure to keep up with your measurements since they are needed to determine the mass percent change. The best way to accomplish this is to use the table provided at the end of this sheet to record your results. The first thing you need to cut the potato into three pieces of about two cubic centimeters (cm^3) in length. The second step you need to take is weighing each potato piece and writing down its mass. Next, label the three beakers with the three different solutions used. Then, you need to pour distilled water over one piece of potato, 10% sucrose on another, 50% sucrose on the last piece of potato; each solution needs to be poured on each potato piece until they are completely submerged. After they are submerged: set your timer for an
Hovercrafts that are balanced typically float only about a few centimeters above the ground due to the weight distribution, and the amount of force needed to make the hovercraft hover. To make a hovercraft hover, the amount of force pushing off the ground needs to be only slightly more than the weight of the hovercraft in order to prevent flying.
The concept of buoyancy states that the upward force of an object immersed inside a fluid is equal to the amount of weight of the fluid it has displaced. The concept is also known as the Archimedes’ principle. After the mathematician, inventor and physicist Archimedes discovered it(Buoyancy - Concept, How it works 2014).
vi. One possible improvement could have been to add an extra part to the investigation, involving the formation of a calcium citrate precipitate from the citric acid in the lemon juice (using limewater of a known molarity), which could be extracted and weighed:
Prediction I think that when the potato is placed in distilled water the potato mass will increase. This is because water, has, if pure, a weaker concentration than the potato, and the water molecules move in through a partially permeable membrane by osmosis. If the potato is in a high concentration salt solution, the potato mass will decrease because the potato is less concentrated than the salt solution, and the water will move through the partially permeable membrane into the stronger solution. However, if the potato mass stays the same after the experiment, this means that the water/salt solution and the potato must be of equal concentration.
The fruits of citrus plants are known to grow on evergreen trees in subtropical areas worldwide that produce fruits with a variety of colors and shapes. Cross sections of the fruit show several identifiable layers. The outermost skin or rind, which normally exhibits a bright yellow or orange color, is the endocarp or flavedo. The endocarp protects the fruit from damage while secreting essential oils that give the fruit its characteristic odor (UNCTAD 2014). A white, spongy tissue known as the mesocarp (albedo) forms the second layer; it makes up the peel of the fruit and is typically removed before consumption (UNCTAD 2014)....
Lithium has a very low density of 0.534 g/cm3, comparable with that of pine wood. It is the least dense of all elements that are solids at room temperature, the next lightest solid element (potassium, at 0.862 g/cm3) being more than 60% denser. Furthermore, apart from helium and hydrogen, it is less dense than any liquid element, being only 2/3 as dense as liquid nitrogen (0.808 g/cm3).[note 1][5] Lithium can float on the lightest hydrocarbon oils and is one of only three metals that can float on water, the other two being sodium and potassium.