Floating or Sinking Egg Science Experiment

Have you ever wondered why some stuff float in water and others sink? This Floating Egg experiment we gonna show you will give you an answer and can teach your kids some science facts about density in a visible way. We also draw some emojis on the egg to make it more attractive to kids. This is a perfect idea to try at home with kids. Now let’s have a look at it.

Ages: 5+            Est. Time: < 20 mins

Safety 

Be careful with the fragile glassware.

 Material list 

• Salt 20g
• Water
• Food coloring
• Red wine glass

 Instruction 

Step 1/2 – Pour 500ml in a red wine glass, add 20g of salt, stir with a glass rod, until the salt completely dissolved.

Step 2/2 – Drop a painted egg into the liquid. You can see the egg is suspended in the middle of the liquid.

 Troubleshooting 

Why does the egg stay down on the bottom?

– It could be that too little salt is added.

 Scientific Description 

The salt dissolved in water increases the density of the water. And, in this experiment, the density of water is higher than that of the egg so the egg float on the salt-water solution.

 Extensions 

This experiment can be done by replacing the salt with sugar and try to put the egg into the sugar density column and see which layer it will stay.

 Disposal 

Pour the liquid into the sink, the eggs can be treated as domestic waste. And, do not forget to wash what you have used.