For this year’s Science Fair, Introductory Physics student Shae K. began by pondering whether it would be feasible to recognize a secret sample of various minerals by formulating their density, offered the understanding that a specific substance’s thickness will reprimary unreadjusted regardless of a adjust in its mass. Due to the fact that minerals execute not regularly come in perfect cubic develop, Shae realized that in order to take a precise measurement of each minerals volume (essential to calculate density) he would have to utilize the water displacement approach. Fascinated by this fairly unique (and also extremely fun!) develop of quantification, Shae traced the beginnings of this strategy to Archimedes and his renowned bathtub story. Throughout the fair Shae enthusiastically debated the important tools needed to perform the strategy and also the procedure affiliated. Furthermore, he presented his visitors via indevelopment about minerals, and also discussed the value of learning the density of a substance.

You are watching: How do you find the density of a mineral


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Scientific Concern


Can a sample of various minerals be established by finding their density?

Hypothesis


I think that minerals can be established by their thickness.

Background Information

What is Density?

Density is just how much stuff an item has in its volume. The object"s thickness will certainly never before adjust. If you have actually a entirety cocoa cake and also cut it in to pieces no matter exactly how many type of times you reduced the cake its thickness will certainly never adjust.

What is the Water Displacement Method?

The Water displacement technique was discovered by a male named Archimedes. Archimedes was given the job to discover out if the gold grown wreath that was provided to the king was made of 100% gold. When Archimedes was taking his daily bath, he stepped into a cold tub of water to which the water began to spill out over the sides. Noticing this Archimedes began to watch the water level rise and also over flow, as he sublinked right into the water. He discovered the solution to the king’s difficulty. He ran out of the public baths, shouting all the way home, “Eureka!”

He was so excited he foracquired that he had actually no clothes on. “Eureka” in Greek translates into, “I have actually discovered it.” He discovered just how to find the volume of an irconstant shaped object.

What is a Mineral?

A mineral is something that is produced by the earth and not by plants, pets, or people. Coal is not a mineral; it is made from decomposed plants that have been fossilized.

How Do you Find an Object’s Density?

You deserve to discover the density of an object by taking its mass, which is how heavy it is, and also dividing it by the volume, its size.

What is Water Displacement?

Let"s say you have actually a cup of water that is filled half way. Then you drop some ice cubes in the cup. Then the water rises up bereason the ice cubes displaced water. The amount of water that is displaced is equal to the volume of the object. By capturing this water and measuring it, utilizing a graduated cylinder, you have the right to uncover a precise measurement. You can use this number in the thickness formula, which is mass separated by volume.

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Conclusion

My hypothesis was that minerals can be figured out by their density’s using the water displacement technique and also it is true. If you look at a mineral chart you will certainly view the names of minerals, and their densities. When you put an item in water the water will certainly increase. The factor for this is bereason the of the objects volume. If you take somepoint that has volume of 10 cubic cm the water level will boost by 10 ml. Dropping minerals in an overcirculation tank fill beneath the spout will make the water increase causing it to go out the hole. In conclusion the identification of a mineral and also its density have the right to be found utilizing the water displacement method.