From the appearance, raw eggs and cooked eggs are not easy to distinguish. However, if you look closely, raw eggs are smoother.

2. Feeling: Pick it up and shake it. It's natural to feel shaky.

3. Rotate a flat egg or an upright egg. The inside of the raw egg is a sticky colloid, which is not easy to rotate. So the raw eggs and cooked eggs are turned flat, and the cooked eggs can be turned up.

I just can't turn the raw eggs over. If the egg is turned vertically, it can be turned over by a boiled egg.

It's a raw egg that won't spin.

4. Put the eggs in the tea,

It is the boiled eggs that darken the eggs.

Put the eggs in the tea,

Eggs are lighter in color than raw eggs.

5. Put the eggs in the water, the raw eggs sink in the water and the cooked eggs float in the water.

6: Turn it on the table, and then gently stop them with your fingers. What stops immediately is cooked, and what is still spinning slightly is raw. This is the principle of inertia. Raw eggs have inertia because the yolk inside is fluid.

7. Use a paper tube, put the eggs at one end of the paper tube and see the light from the other end of the paper tube. Transparent eggs are raw eggs and opaque eggs are cooked eggs.