For this year’s science Fair, introductory Physics student Shae K. Began by pondering whether it would certainly be possible to recognize a secret sample of different minerals by formulating their density, provided the knowledge that a details substance’s density will continue to be unchanged regardless of a change in that is mass. As result of the fact that minerals perform not often come in perfect cubic form, Shae realized that in stimulate to take a precise measurement of every minerals volume (needed to calculation density) he would have to utilize the water displacement method. Fascinated through this rather distinct (and an extremely fun!) form of quantification, Shae traced the origins of this method to Archimedes and also his famous tub story. Throughout the fair Shae enthusiastically discussed the essential tools needed to execute the an approach and the procedure involved. Additionally, he presented his visitors with information around minerals, and discussed the worth of discovering the thickness of a substance.

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Scientific concern

Can a sample of various minerals be figured out by finding your density?


I think the minerals deserve to be established by your density.

Background Information

What is Density?

Density is how much stuff an item has in the volume. The object"s density will never ever change. If you have a whole cacao cake and cut that in to piece no matter how plenty of times you cut the cake its thickness will never ever change.

What is the Water Displacement Method?

The Water displacement method was found by a guy named Archimedes. Archimedes was provided the job to discover out if the gold grown wreath that was provided to the king was made of 100% gold. As soon as Archimedes was taking his day-to-day bath, the stepped into a cold tub of water to which the water started to spill the end over the sides. Noticing this Archimedes began to watch the water level rise and over flow, together he submerged right into the water. He discovered the equipment to the king’s problem. The ran the end of the public baths, shouting all the way home, “Eureka!”

He was so excited that forgot that he had no apparel on. “Eureka” in Greek converts into, “I have discovered it.” He discovered how to uncover the volume of an irregular shaped object.

What is a Mineral?

A mineral is something that is developed by the earth and not through plants, animals, or people. Charcoal is no a mineral; that is made from decomposed plants that have been fossilized.

How execute you uncover an Object’s Density?

You can uncover the thickness of an object by acquisition its mass, i beg your pardon is how heavy it is, and dividing it by the volume, that size.

What is Water Displacement?

Let"s say you have a cup that water that is filled fifty percent way. Then you drop some ice cubes in the cup. Then the water rises up because the ice cubes displaced water. The amount of water that is displaced is equal to the volume the the object. By capturing this water and measuring it, making use of a graduated cylinder, you deserve to find an exact measurement. You can use this number in the thickness formula, which is mass split by volume.

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My theory was that minerals can be determined by your density’s using the water displacement an approach and it is true. If girlfriend look in ~ a mineral chart you will watch the surname of minerals, and their densities. When you put things in water the water will certainly rise. The reason for this is since the of the objects volume. If you take something that has actually volume of 10 cubic centimeter the water level will boost by 10 ml. Dropping mineral in one overflow tank fill beneath the spout will certainly make the water rise causing it come go out the hole. In conclusion the identification of a mineral and also its thickness can be found using the water displacement method.