My objective is to see which egg will float. The question is how much salt is needed to be
added to make the egg float. The problem is that I do not know how much salt is
make an egg float.
If I add salt to the water then the egg will float because the egg has a density that is lower
that the density of the fluid it displaces.
If the object has a density that is higher than the density of the fluid it displaces, it will sink. If
the object has a density that is lower than the density of the fluid it displaces, it will float. Some
objects that sink in fresh water will float in salt water. This is because saltwater has a higher
density than freshwater. Websites that I used for this project are the ones below.
' www.ehow.com › Education
' answers.askkids.com › How Stuff Works
The manipulated variable is that the water will be changed one is salt water and the other is
not. The Responding variable is that I will measure how much salt is needed to make the egg
float. The controlled variable is that I will be the one doing everything and recording the
project, and I will have the same type of eggs.
' 2 eggs ' tab water ' Two Beakers
' salt ' stirring stick ' Measuring cups
Step 1 : Put the water in cup halfway up
Step 2 : Put 6 tsp of salt into the water.
Step 3 : Mix the water and salt with stirring stick until you cant see the salt at the bottom.
Step 4 : Gently Put in the egg and record what happens.
As you can see in the first tbsp the egg floated about 200mL. After putting the second tbsp it...
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