Can you make an egg float in water? In this an easy science experiment, us take just a couple of minutes to test the laws of density and discover just exactly how easy the is to make make one egg float!

Below you’ll find detailed instructions and also our demonstration video clip as well together the clinical explanation that “why it works.” We’ve also included a an ext ideas to check out the principle a little further.

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Supplies Needed

2 Eggs2 tall Drinking GlassSaltWater


Experiment Setup – begin with some observations around the eggs. Keep in mind that they are both raw eggs and have a comparable size and weight. Climate ask some questions. Carry out you think the the eggs will sink or rise when put in water? do you think it’s feasible to do them float? If so, how? create down your theory (prediction) and then monitor the procedures below.


Step 1 – Fill a high drinking glass around 3/4 complete of water and also carefully ar the egg right into the glass. What happens to the egg? That’s right, it sinks to the bottom.

Did you understand there is a way to make it float? proceed on in the experiment to uncover out how.


Step 2 – Fill an additional tall drink glass about 3/4 complete of water.


Step 3 – Add 3 Tablespoons of salt to the water and stir till it is fully combined. What perform you think will happen if you place the egg right into the glass with the salt water? create down your hypothesis (prediction) and also then check it to watch if you to be right.


Step 5 – Next closely place the second egg right into the glass with the salt water. What happens to the egg? That’s right, it floats. Take a moment to make some observations. Why carry out you think one egg sinks and the other egg floats?

Find the end the prize in the exactly how does this experiment work section below.

Video Tutorial

Watch the Floating Egg scientific research Experiment action by step Instructions

How go the Floating Egg science Experiment Work

Why go the egg sink in continuous tap water, but float in saltwater? The answer lies in the thickness of water!

Density is a measure of the mass every unit volume the a substance. Simply said, exactly how much “stuff” in a offered volume. Water has a density of 1 g/mL (g/cm3). Objects will certainly float in water if their density is much less than 1 g/mL. Objects will certainly sink in water if their thickness is better than 1 g/mL.

The egg will certainly sink in constant tap water because the density of the egg is greater than the thickness of water. The egg’s thickness is just slightly greater than water at 1.03 g/mL, however that is enough to do the egg sink.

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When you add salt come the water, girlfriend are raising the density of the water by adding much more mass (or stuff) in the given volume. You don’t really adjust the volume of the water by adding salt. By adding enough salt, you increase the thickness of the water so that it is greater than the thickness of the egg and the egg will certainly float!

Other principles to Try

Try this experiment again, yet instead of making use of an egg usage a potato part or a carrot slice. Friend will have to play about with the lot of salt you add to the water due to the fact that all objects have actually their own distinctive density. Add salt a tablespoon at a time and also mix well until you cannot see any salt in the solution, then add your thing to view if that floats or sinks. Remove your object and also keep including salt until you can get your object to float. To do it a true scientific research experiment, create a data table to save track of exactly how much salt you include to the solution.