How is the sugar missing from the science activities of the small class

1. Material preparation: drinks, cups, spoons, warm water, rice, sand, salt, sugar, fruit juice powder.

2. Experiments. 1) Experiment 1: Dissolution of sugars. While explaining the demonstration operation, scoop a spoonful of sugar into the water, and see, the sugar has gone to **? Now the teacher uses a spoon to stir it, and the child sees that the sugar has gone to **? It's hiding in the water!

2) Experiment 2: Dissolution of salt. Encourage young children to come forward: there is still salt here, which of you should try it and see if it hides in the water?

3) Summary: Sugar and salt are dissolved into water by stirring.

3. Organize ** experiments, comparing easily soluble and insoluble objects.

1) Introduce the materials and put forward the operation requirements. Introductory words: There are cups, spoons, warm water, rice, rice noodles, fruit juice powder, and sand on the table, please put rice, milk powder, fruit juice powder, and sand into the cups, stir them with spoons, and see what things will dissolve like sugar, and what things will not dissolve, and record the results of the experiment.

Tick the box below what can be dissolved, and circle the thing that can't be dissolved.

2) Organize hands-on experiments for young children. Remind the children to pay attention to the changes in the water when they put fruit juice powder, rice, sand and milk powder in the experiment.

Conclusion: Learn to observe ways to compare dissolvable and insoluble objects.

Event design background.

One day, Xiao Pan in the class brought two pieces of candy, he ate one during the activity, some children saw it and wanted to eat it like he wanted, he didn't give it, and after the activity was over, it was more time to drink water, and he was afraid that others would grab it, so he hid the sugar in the water cup. By the time he remembered his sugar, he was looking for candy and it was gone. So he came to me and said that someone had stolen his candy.

I picked up the water cup and found that he had put the sugar in the cup with water and melted it. That's how I designed this event.

Activity Objectives. 1. Observe the change process of sugar in water, and be able to boldly express your findings in your own words.

2. Enhance children's curiosity and be willing to think about the question of "why is the sugar gone".

Teaching focus and difficulty.

Focus: Be bold enough to speak out about your findings.

Difficulty: Thinking about "why is the sugar gone?"

Event preparation. No one has a small water cup, a piece of sugar, a soup spoon.

The process of the activity. 1. Let children observe the process of sugar dissolution to stimulate children's interest.

See what's on your seat? What happens if you put sugar in water?

Today, the teacher asks you to try it and take a closer look at what happens when you put sugar in water.

Children's experiments, observations and communication.

2. Guide children to observe the dissolution phenomenon.

You just saw the sugar in the water, why is it gone? Where did it go? Is he really gone? What has become of him now?

Young children discuss and communicate.

3. Summary. Today we discovered an interesting phenomenon: sugar disappears when it is put into water.

4. Activity extension.

Do you know of anything else that melts away in water like sugar?

Reflection on teaching. This activity is very beneficial to guide children's curiosity, independent thinking, expression and other habits. However, there is still room for improvement in the form of teaching organization, and this activity can be taught in groups to enhance children's sense of competition.