When my mother went to class, Leilei also had to attend class. This lesson was left for Leilei when she went to kindergarten yesterday. Uncle Er knew about this lesson and helped Leilei make two slide models.

A group of college students and children watched Meng Chenyi move the model out and put two glass beads on for experiments. When the two glass beads fell down from the straight slide and the curved slide at the same time, the beads rolling on the curved slide finally arrived at the end first.

This result was beyond the imagination of the children.

"Why?" the little girl Meng Chencheng shouted, "Isn't this curved one much longer than the straight one?"

When Meng Chenyi didn't have time to answer his sister, his nephew Leilei was already rushing to raise his little hand and bit the words his mother said yesterday with his little mouth: "The best, fast, curve, line!"

"Leilee, you actually remember so clearly." Meng Chenyi touched his nephew's head and praised.

Leilei's little face was flushed with excitement: I must remember every scientific word my mother said~

College students and children looked for physics books together to understand what is the principle of the fastest curve.

"It turns out that deciding who ends faster is not just length, but the speed of movement." The little girl Meng Chencheng said with insight after reading the book. She turned her head again and saw that her nephew was taken by her second brother to the phone.

In an interesting scientific experiment, Leilei thought about whether he should come to his home to see his friend Xiaogu. So his second uncle Meng Chenyi learned what he was thinking and took him to the phone.

Meng Chenyi first called Xiao Gu's house.

It seems that the call from Xiaogu’s grandmother Xiaogu answered.

"Is Xiaogu at home, grandma?" Meng Chenyi asked.

"Who are you?" Grandma Xiaogu asked back.

"I am Leilei's second uncle. Leilei wants to invite Xiaogu to our house to play."

After hearing this, Grandma Xiaogu suddenly broke the phone opposite.

A clanging sound of broken lines came from the microphone, and Meng Chenyi frowned his beautiful eyebrows as he heard it.

"Second uncle." Leilei asked.

"Xiao Gu seems not at home." Meng Chenyi put down the microphone and said in a warm voice.

Leilei seemed to be listening to his second uncle in a daze. It seemed that his little ears could clearly hear something?

Afraid that the little nephew was sad about something, Meng Chenyi coaxed the little nephew: "Is it okay to take you to make a model plane with me today?"

A model of the plane that can fly? Leilei happily gestured with his little hands as the plane flew in the sky.

Seeing that the little nephew's attention was turned away, Meng Chenyi felt relieved.

At Xiaogu's house, Xiaogu's grandma fell off the phone and angrily said: "What did she do to support her?"

To put it bluntly, Grandma Xiaogu doesn't like Xiaogu's mother as her daughter-in-law, especially after Xiaogu was born, Grandma Xiaogu hated this daughter-in-law even more. She wished that this daughter-in-law could take Xiaogu away as soon as possible. Unexpectedly, Cheng Yaojin, the Meng family, suddenly broke out.

Can Xiaogu really go to Beihai Kindergarten? Grandma Xiaogu can't figure out how the Meng family helped her daughter-in-law do this.

It just so happened that the mother of Xiaoxiao came over and said, "Grandma Xiaogu."

Grandma Xiaogu opened the door and walked out: "Hello, Xiaoxiao mom."
Chapter completed!