How do you test density of a rock?

Divide the mass of the rock by its volume to calculate the density of the rock. In our example, the density is 20.4/8 = 2.55 g/cubic cm. Divide the rock density by the density of water to calculate the specific gravity.

How is density measured in an experiment?


  1. Find the mass of an empty graduated cylinder.
  2. Pour 100 mL of water into the graduated cylinder.
  3. Weigh the graduated cylinder with the water in it.
  4. Find the mass of only the water by subtracting the mass of the empty graduated cylinder.
  5. Use the mass and volume of the water to calculate density.

How do you find the bulk density of a rock?

The bulk density of a rock is ρB = WG/VB, where WG is the weight of grains (sedimentary rocks) or crystals (igneous and metamorphic rocks) and natural cements, if any, and VB is the total volume of the grains or crystals plus the void (pore) space.…

How do you calculate volume of a rock?

How to Measure the Volume of a Rock

  1. Take a large, measuring beaker and fill it about half-way with water.
  2. Read the measurement on the side of the beaker and record this number.
  3. Carefully insert the stone into the water.
  4. Read the new measurement of the water level.

What is the density of a rock?

Rocks often have a density around 3 g/cm3, and metals often have densities above 6 or 7 g/cm3.

What is accepted density?

Density is defined as mass/volume, and is usually expressed as g/mL (or g/cm3 in the metric system). The accepted value of density is 8.470 g/cm3 for brass.

What is the density of dish soap?

How Does It Work

MATERIAL DENSITY (g/cm3 or g/mL)
Ice cube 0.92
Water 1.00
Milk 1.03
Dawn dish soap 1.06

What is the mass of a rock?

rock mass A large and indistinct body of solid earth materials, containing features on the scale of jointing, folding, schistosity, etc. The term would not be used to describe a rock only the size of a hand specimen.

What is the volume of a rock?

To find the volume of the rock, subtract the initial volume of the water from the final volume of the water: 50 mL – 30 mL = 20 mL. Therefore, the volume of the rock would be equal to 20 mL or 20 cc.

How much crushed stone do I need calculator?

Multiply the length (L), in feet, by the width (W), in feet, by the height (H), in feet, and divide by 27. This will tell you how many cubic yards of crushed stone you need.

How to do science experiments with liquid density?

You can perform several science experiments with different types of liquids to determine which is more dense. These experiments can make a good liquid density science fair project as well. Use these science projects as a foundation and then come up with unique ideas of what to test to make it your own.

What are the densities of different rock types?

Densities of Typical Rock Types and Minerals. Rock Type Range (g/cm3) Average (g/cm3) Sediments(wet) Overburden 1.92. Soil 1.2 – 2.4 1.92. Clay 1.63 – 2.6 2.21. Gravel 1.70 – 2.40 2.0. Sand 1.70 – 2.30 2.0.

How does a rubber balloon density test work?

Rubber Balloon Density test shares some similarities with the sand cone method. Like the sand cone method, a test hole is excavated, and the soil is carefully collected and set aside.

What is the purpose of an introduction to density?

Introduction to Density. INTRODUCTION The purpose of this experiment is to understand the meaning and significance of the density of a substance. Density is a basic physical property of a homogeneous substance; it is an intensive property, which means it depends only on the substance’s composition and does not vary with size or amount.