Density of water

When you put an egg in tap water, you will see that it sinks!
But if you put it in salt water, then what will happen?
Does it.......
A) float
B) sink

In this experiment, we  are going to show whether  an egg can float or sink in salt water.

The things you will need is ....

• One egg (you can boil it or let be raw.) But the best is boiled.
• Two cups of water. 
• Salt. (It should be normal salt.)
• A notebook and a pen

The steps for the experiment,

1. Place the two cups of water on the table (cup A and cup B)
2. Stir in about 6 tablespoons of salt into cup B.
3. Gently put the egg into cup A 
4. Observe what happens to the egg and note down the observation
5. Remove the egg from cup A and gently put it into cup B
6. Observe what happens to the egg and note down the observation

Observation

• The egg sank to the bottom of cup A while the eff floated in cup B

Reason

Tap water is less denser than egg thus egg sank to the bottom of cup A
Salt water is denser than egg and thus egg floated in cup B.

Additional experiment:

We took a wider bowl and poured the water from cup B to it.
But when we tried to put the egg in the bowl the egg sank. Do you know why it sank?

It sank because of surface area.

Reason:

 The bowl has a bigger surface area than Cup B.