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Bananas: When stored in an environment below 12, it will make it black and rotten.

Cucumber: If left in the refrigerator for three days, the skin will become water-soaked and lose the flavor it holds.

Tomatoes: When frozen, some or all of the fruit will be soaked in water and soft and rot, showing brown round spots.

Bread: During the baking process of bread, the starch linear parts in the flour have aged, which is why the bread develops an elastic and soft structure. As the bread is left for a longer period of time, the amylopectin in the bread slowly associates, and the soft bread gradually hardens, a phenomenon called "aging".

The rate at which "aging" is temperature dependent. It ages faster at low temperatures (above the freezing point), while bread hardens faster when it is stored in the refrigerator.

Cucumber and green peppers: Cucumbers and green peppers that have been stored in the refrigerator for a long time will cause frostbite "injury" - blackening, softness, and taste. Cucumbers also grow sticky hair.

Because the temperature stored in the refrigerator is generally about 4 to 6, while the suitable storage temperature for cucumbers is 10 to 12, and green peppers are 7 to 8. Therefore, it is not suitable to exist for a long time.

Ham: If stored in the refrigerator, the moisture in it is easy to freeze, which promotes the oxidation of the fat in the ham, and the quality of the ham will be significantly reduced, so that the shelf life is greatly shortened. �

Chocolate: In summer, the indoor temperature is generally around 25, at this time, if the chocolate is taken out of the refrigerator, the surface of the chocolate will immediately frost, and after a long time, the chocolate will become mildew or insects due to moisture.

Leafy vegetables: It is best not to put them next to the refrigerator, otherwise they will rot.

Bananas, fresh lychees, tomatoes, ham, and chocolate are all foods that should not be put in the refrigerator.

Bananas: If bananas are stored below 12 degrees Celsius, they will turn black and rot.

Fresh lychee: If the fresh lychee is left in an environment of 0 degrees Celsius for one day, the skin will turn black and the flesh will become tasteless.

Tomatoes: After tomatoes are frozen at low temperature, the flesh is blister-like, soft and rotten, undercooked, without umami, and in severe cases, it is rancid and rotten.

Ham: If the ham is stored in the refrigerator at a low temperature, the moisture in it will freeze, the fat will precipitate, the leg meat will clump or loose, the meat will become tasteful, and it will be easy to spoil.

Chocolate: After chocolate is frozen in the refrigerator, once taken out, a layer of hoarfrost will form on its surface at room temperature, which is very easy to mold and deteriorate, and lose its original flavor.

When using refrigerators to store food, the problem of cross-contamination of raw and cooked foods cannot be ignored. For example, raw fish, raw meat, and cold drinks are stored in the refrigerator at the same time without strict packaging, and the upper food contaminates the lower food, and so on.

In order to prevent cross-cooking and "cross-flavoring" of food, use a plastic bag or plastic wrap to wrap the food tightly and store it in the refrigerator.

You, the elephant, the lion, the tiger, and the most terrifying thing is the teacher!!

Tropical fruits, such as mango, rambutan, etc., they can spoil faster when they are kept in the refrigerator.

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3. The growth of seeds needs air, without air, seeds will not grow. (4. Change certain conditions, some liquids that were originally insoluble in water may also be soluble in water.) (5. minus 10 degrees Celsius can be written as 0 under 10.)

a, add salt b, add water c, add sugar to the temperature of boiling water - 10 eraser.

Cooking oil does not dissolve in water.

Honey. 6. Short-answer questions: 20 points (5 points for each question).

1. How to separate wood chips and iron nails (write at least three methods)?

2. Please draw the symbols of the following weather conditions: sunny, cloudy, cloudy, thundershowers, heavy rain.

6533. What materials are needed to make a wind vane, and how many steps can you write down to make a wind vane?

4. Tell us about the characteristics of people, animals, and plants in autumn and winter886