For this year’s scientific research Fair, introduce Physics college student Shae K. Began by pondering even if it is it would certainly be feasible to recognize a an enig sample of various minerals by formulating their density, offered the knowledge that a certain substance’s density will stay unchanged regardless of a change in its mass. Due to the truth that minerals carry out not regularly come in perfect cubic form, Shae realized the in bespeak to take it a an accurate measurement of each minerals volume (needed to calculate density) he would need to utilize the water displacement method. Fascinated through this rather unique (and really fun!) type of quantification, Shae traced the beginnings of this technique to Archimedes and his famous tub story. During the same Shae enthusiastically questioned the necessary tools required to carry out the technique and the procedure involved. Additionally, he presented his visitors through information about minerals, and discussed the value of learning the density of a substance.

You are watching: What is the density of a mineral?

### Scientific inquiry

Can a sample of different minerals be identified by finding your density?

### Hypothesis

I think the minerals have the right to be identified by your density.

### Background Information

What is Density?

Density is just how much stuff things has in that volume. The object"s density will never change. If you have actually a whole chocolate cake and also cut that in to pieces no matter how numerous times you reduced the cake its thickness will never ever change.

What is the Water Displacement Method?

The Water displacement method was discovered by a man named Archimedes. Archimedes was given the job to uncover out if the yellow grown wreath the was given to the king to be made that 100% gold. As soon as Archimedes was taking his daily bath, he stepped right into a cold bath tub of water to which the water started to spill out over the sides. Noticing this Archimedes began to clock the water level rise and also over flow, as he submerged into the water. He discovered the systems to the king problem. The ran out of the public baths, shouting every the method home, “Eureka!”

He to be so excited that forgot that he had no apparel on. “Eureka” in Greek translates into, “I have found it.” He uncovered how to discover the volume of one irregular shaped object.

What is a Mineral?

A mineral is something that is created by the earth and not through plants, animals, or people. Coal is no a mineral; the is make from decomposed plants that have actually been fossilized.

How do you find an Object’s Density?

You can find the thickness of things by taking its mass, i m sorry is how heavy it is, and dividing the by the volume, the size.

What is Water Displacement?

Let"s speak you have a cup the water the is filled half way. Then you drop part ice cubes in the cup. Then the water rises up since the ice cubes displaced water. The amount of water that is displaced is equal to the volume that the object. By recording this water and also measuring it, using a i graduated cylinder, you deserve to find precise measurement. You have the right to use this number in the density formula, i m sorry is mass divided by volume.

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Conclusion

My hypothesis was the minerals deserve to be established by their density’s utilizing the water displacement technique and that is true. If you look in ~ a mineral chart you will see the name of minerals, and their densities. As soon as you put an item in water the water will rise. The reason for this is because the the the objects volume. If you take something that has actually volume of 10 cubic centimeter the water level will boost by 10 ml. Dropping minerals in one overflow tank fill beneath the spout will certainly make the water rise causing it to go the end the hole. In conclusion the identity of a mineral and its thickness can be found using the water displacement method.