How to measure the density of eggs with beaker, water, flat bottom test tube, fine sand, scale and salt

First, prepare salt water to suspend the eggs in water, so that the density of salt water is the same as that of eggs,
2. Put a small part of sand into a small flat bottom tube, float it in the water, and measure the length L1 under the water surface, where the density is 1g / cm ^ 3
3. Put the small test tube with sand into the salt water, float it in the salt water, and measure the length under the water
Then there is: ρ water gsl1 = g = ρ salt water GSL2, so ρ salt water = ρ water L1 / L2

How to use densitometer, measuring cylinder, water, salt, glass rod to measure the density and quality of eggs?

(1) Pour proper amount of water into the measuring cylinder and read out the number V1 of the measuring cylinder;
(2) Put an egg into the water, sink the egg into the bottom of the water, and read the number V2 of the measuring cylinder;
(3) Slowly add salt in water, and stir with a glass stick until the egg is suspended, stop adding salt;
(4) Take out the egg, put the densitometer into the brine, and read out the scale ρ of the liquid level;
Conclusion: the density of egg is ρ, because the egg is suspended later, the density of egg is equal to the density of brine
Egg mass: M = ρ v = ρ (v2-v1)

Use balance, measuring cylinder, beaker, water, glass rod and salt to measure the density of eggs

1. Adjust the balance to measure the mass of eggs as m eggs
2. Fill the measuring cylinder with appropriate water and read the volume of water v1
3. Put the egg into water and read the volume of water and egg
4. Calculate the density according to ρ = m egg (v2-v1)

How to measure the density of eggs with beaker, water, flat bottom test tube, fine sand, scale and salt