Science Lesson Plan Dried Fruits and Fruits is detailed

Activity Objectives1.Through observation and comparison, the characteristics of fruits and dried fruits are summarized.

2.Knowing that fruits and dried fruits are nutritious, I like to eat fruits and dried fruits.

Event preparation1.Preschool Education Courseware: Fruits and Dried Fruits.

2.Physical: walnuts, apples.

The process of the activity1. ImportGuessing riddles arouses the interest of young children.

1.Look at the agate purple from afar, see the pearl round and slippery up close, pinch it with a handful of water, bite it sour. (Grape).

2.A hemp house, a red tent, in which a fat white man sleeps. (Peanuts).II

1.Knowledge facilitation(1) Children, who knows which is the fruit and which is the dried fruit?

2) Why are grapes a fruit and peanuts a dried fruit?

Fruits contain a lot of water and have pulp in them. Dried fruits are dry and the outside'Shell, filled with seeds. ）

2.Learn to distinguish between fruits and dried fruits(1) What are the fruits you know?

Encourage children to speak up and inspire other children to recall and think) (2) What are the dried fruits you know?

3.Courseware: Fruits and dried fruitsAsk the children to find out which is the fruit? What are dried fruits?

Deepen children's distinction and understanding of fruits and dried fruits.

4.Observe the fruit, feel the touch, compare the similarities and differences(1) How do you feel when you touch the surface of an apple?

Very smooth, the skin is a little soft)

2) What does it feel like to touch the surface of a walnut?

It's rough, the skin is hard)

3. EndQuestion discussion: What are the categories of grapes and jujubes? What kind of raisins and dried dates belong to?

Activity ExtensionLet your child go home with questions to look up information and find answers.

Fresh fruits, tender and juicy, nutritious and delicious. Air-dried dried fruits, delicious and restrained, easy to preserve, and also very popular with everyone, the two can be said to have a thousand advantages. But from the perspective of healthy eating, which one is better?

Grapes and raisins.

Fresh grapes are well hydrated, raisins are sweet and tasty, and are easy to preserve. Many people have heard that raisins have a higher nutritional value than grapes, but is this true?

When comparing nutritional value, people usually compare 100 grams of grapes with 100 grams of raisins, but this comparison method is not suitable, because fresh grapes have more moisture, and 100 grams can almost produce about 20 grams of raisins.

Therefore, if eating 100 grams of fresh grapes can supplement minerals such as 8 mg of calcium and 14 mg of phosphorus, then you can supplement so many minerals by eating more than 20 grams of raisins.

Fresh grapes are nutritious, and raisins are higher in sugar.

In fact, there is little difference in the nutritional value of fresh grapes and raisins, mainly because fresh grapes have more complete nutrients and contain more active substances; Raisins are air-dried, on the other hand, with a higher glucose content, but some of the active substances are lost.

Experts suggest that diabetic patients, if their blood sugar control is better, can eat a few fresh grapes every day, because grape skins and grape seeds contain substances that clear blood vessels and lower blood lipids, which are good for cardiovascular health. Raisins, on the other hand, are not recommended.

Grapes are a kind of fruit that everyone loves, and as far as grapes are concerned, whether they are fresh grapes or dried raisins, they are rare and delicious. Both are liked by everyone, but in combination with the opinions of experts, it is better to have fruit in terms of nutrition, because there will be a great loss of nutrients in the fruit after drying.

Fruits are generally more watery and suitable for fresh consumption, while dried fruits are suitable for processed consumption and are more delicious. Fruits contain more sugar, water, vitamins, and fiber. Dried fruits generally contain less water, vegetable oil, flax oil and trace elements.

Fruits are easy to spoil because of their high amount of moisture and are not easy to preserve. Due to the lack of moisture, dried fruits have a relatively long shelf life after frying, processing, and proper preservation methods.

Dried fruits, i.e., fruits that are dried when the skin of the fruit is ripe. Dried fruits are further divided into split fruits and closed fruits, and most of them are rich in protein, vitamins, lipids, etc. For example, chestnut, cone chestnut, thunderbolt, hazelnut, cashew nut, walnut, melon seed, pine nut, almond, ginkgo seed, pistachio, pecan, desert fruit, quimbnut, white melon seed, pumpkin seed, peanut, almond, macadamia nut, etc.

Fruit refers to the edible plant fruit that is juicy and has a predominantly sweet and sour taste. Fruits are not only rich in vitamins and nutrients, but also can promote digestion.

Extended information: Extensive use of pesticides, various chemical preservatives and preservatives, various growth hormones, precautions for cleaning fruits:

Do not use ordinary detergents to wash fruits, the detergent itself contains chemical components that are easy to remain on the fruit, rinse with salt water.

Grapes]: There is a layer of hoarfrost on the surface of the grapes (generally the residue of pesticide Bordeaux liquid, which is slightly toxic), and some soil is adhered to it, put the grapes in the water, and then put two spoons of flour or starch, do not knead it hard, just pour it back and forth, and then put the water back and forth to sift and wash, the flour and starch are sticky, it will bring down the mess.

Apple]: Many people like to eat apples with the skin on their feet, and many preservation technologies make it difficult to clean the residual chemicals on the surface of apples. After the apples are soaked in water, put a little salt on the skin, and then gently rub the apples back and forth with both hands, so that the dirt on the surface can be rubbed off quickly, and then rinsed with water.