How Can You Measure the Density of Liquids? - SPARKLEBOX
How Can You Measure The Density Of Liquids?

How Can You Measure The Density Of Liquids?

How Can You Measure The Density Of Liquids?

What Does The Density Of Liquids Mean?

measuring Density Of Liquids

A liquid is an incompressible fluid that takes its container’s shape but maintains a constant volume independent of the pressure. It is also the fourth fundamental state of water, with a definite volume but not a fixed shape. In this state of matter, the atoms or the molecules are not as tightly packed as those in the solid-state. The density of liquids (more precisely, the volumetric mass density, also known as specific mass) is its mass per unit volume. The symbol most often used for density is ρ (the lowercase Greek letter rho). Mathematically, density is defined as mass divided by volume. 


where ρ is the density, m is the mass, and V is the volume

Density is a physical property of matter that expresses a relationship of mass to volume. Different materials have different densities.

What Is The Importance Of Knowing The Density Of Liquid?

Density is an intensive property that helps determine whether an object will float or sink when placed in a liquid. This concept can help you answer your child’s question of why a rock sinks when thrown in a river. The general phenomena of density will also answer all the small questions that your kid may have in their mind from their day-to-day life.

How To Measure The Density Of Liquid?

Here, we will measure the density of liquids, namely water, honey, and oil, with a simple experiment. This experiment will give us a clear idea of whether oil is heavier than water or honey or vice versa. 

Let’s get started with this experiment.

honey is denser than water

The density of the following liquids is mentioned below:

  1. Density of water at room temperature: 1 g/cm³
  2. The density of Honey: 1.43 g/cm³
  3. Density of Oil: 0.926 g/cm³

Materials Required for the Experiment:

  1. Test tube / Beaker / Transparent plastic cup / Glass cup
  2. Water
  3. Honey 
  4. Cooking oil 

Procedure for the Experiment:

  1. Take a test tube/ Beaker / Transparent white plastic cup / Glass cup and add water 
  2. Add honey to the water in the test tube
  3. Add oil to the same test tube
Density Of Liquids in a beaker

Observe the layers of different liquids. It’s happening because the density of the three liquids is different. Now you know how to measure the density of liquid and compare it to each other.

If you want to find out the approximate density of each liquid, you can calculate it using this formula: Density = Mass/Volume.

Science Experiment For Measuring The Density Of Liquid At Home

Learn About The Concept Of Measuring The Density Of Liquid More Clearly With These 3 Science Experiments:

Experimenting With Eggs

  • Take 2 eggs of roughly the same size and weight. 
  • Fill a tall drinking glass with 3/4 water.
  • Put an egg in it. 
  • Observe and record what happens.
  • Take another glass and fill it with the same amount of water.
  • Now put 3 tablespoons of salt in it and stir well until fully dissolved. 
  • Put another egg in it. Observe and record what happens.
  • Compare your observations and understand why one egg floated and the other sank.
egg in water experiment

The Shape Of The Clay Matters

  • Fill up a tub full of water.
  • Take a ball of clay or Play-Doh and put it inside the tub.
  • Observe and write down your findings.
  • Take another piece of clay and this time, try to give it a shape. You can flatten it out and fold its edges to give it the form of a boat or a kayak.
  • Try putting it inside the tub again. 
  • Does it float or sink? Does shape have anything to do with the density of the object? The answer lies in your observation!

Can An Orange Float?

  • Take an empty glass jar and fill it with water.
  • Take an orange and put it inside the jar.
  • What happens to the orange? Does it sink?
  • Write down your observations.
  • Peel the orange and put it in another jar filled with water.
  • Do you notice a change in the density of the orange?
  • Write down the difference between the two events and observe the change.

These are a few simple science experiments that any child can try out, regardless of age! 

Carrying out such interesting activities may help your child understand the deep concepts of science, which are the foundation of the subjects in their higher classes. Not only this, these experiments can be the easiest project ideas, too, when it comes to last moment science project submissions for your kids.


Density Of Liquids

Measuring the density of liquid is no biggie, but observing it hands-on with these super easy and fun science experiments can greatly impact your learning and understanding of the magical subject that is science! These experiments are safe and can be performed at home for kids of all age groups.

Who knows, while experimenting, you uncover something that no one else had an eye for yet? All the best!

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