Madison Checketts loves beaches. But she often sees the sand covered with plastic bottles. “This needs to change,” she told Smithsonian magazine.

The 12-year-old from the US created a new kind of water bottle. People can actually eat it! The idea comes from the “popping boba” in bubble（气泡）tea drinks. A thin piece of jelly（胶状物）keeps the juice inside.

Checketts learned how to make this online. First, she put some chemicals（化学物质）together. Then she froze（冷冻）them to make the jelly. After some tries, she made her own hand-sized “bubble” with water inside!

People can bite（咬）a hole at the top of the bubble, drink the water and then either eat the “bottle” or throw it away. It can break down without polluting the environment. Checketts said the bottle felt like a gummy bear（小熊软糖）and tasted a bit sweet.

In the future, Chcckotts will run more tests to make the water bottle stronger and bigger. She wants her water bottle to be used during the marathon; a long running race. As runners stop for water, they can get a bubble, drink the water and either eat or throw the bubble. “I hope people can understand that everyone can make the world a better place,” she said.

【推荐2】Imagine using your coat to look through the internet,bsend and receive messages, and even read a map.bYes, you read that correctly—your coat.

It may sound silly, but it’s something scientists are working on. Researchers at Shanghai’s Fudan University have made a new type of cloth that can be used as a digital display (显示屏).

Professor Peng Huisheng and his team have spent 10 years trying to make “digital cloth”. After testing different combinations, they chose two materials but worked: a silver-plated yarn (镀银纱) that can light up and a kind of thread (纺线) that conducts (传导) electricity.

The results have been admirable. It’s not only wearable and fold able, but also washable. After being put through 100 wash-and-dry cycles in a washing machine and folded 10,000 times, the cloth remained almost unchanged.

Peng believes that the new cloth could be used for many things. For example, it could allow a driver to view a GPS map on their arm while they drive around. It could also help people communicate better if they have language barriers (障碍) or disabilities.

In one test, Peng’s team collected brainwaves from volunteers who had either been playing a game or. The waves were then translated into messages like “anxious” or “relaxed” and shown on the cloth. This could help deaf-mute (聋哑的) people “talk” to each other in the future.

“We hope that new materials will shape next-generation electronic devices by changing the way we interact with them.” said Peng.

【推荐3】Paper, as one of the four great inventions of our country, can be seen everywhere in our life. Although it is very common, it can always play an important role when we need it.

The invention of paper ended the complex(复杂的) history of ancient writing and greatly promoted(促进) the spread and development of culture.

Paper is an important invention in ancient China. Writing was developed gradually from ancient times when people depended mainly on writing instruments for making ropes. At first, oracle bone(甲骨) was used as a writing material. Bamboo, wood and silk were also discovered and used during the Spring and Autumn Period. But as silk was too expensive and the bamboo pieces were too heavy, paper was produced. Thanks to the invention and popularization of paper, people could no longer use stone, wood, metal and other materials to record writing or pictures, and a large amount of ancient information was spread and preserved.

Paper is quite useful in our life. It is the carrier of writing and printing. Painters use it to describe the beauty of the world, writers use it to tell the warmth of the world, and educators use it to spread knowledge.

It is also used for packaging(打包). Harder cardboard is used to pack things, such as delivery boxes(快递盒). Of course, it can also be used for other purposes, such as printing paper, toilet paper, and so on.

All in all, paper plays a significant role in our lives and is used for all kinds of purposes: to write, to paint…

【推荐1】Solar panels（太阳能电池板）are a kind of environmentally-friendly product. They take energy from the sun and turn it into electricity. In many parts of the world, solar panels are used to produce electricity. More and more people have started using solar panels to provide power for their homes.

However, solar panels also have their disadvantages. They can’t produce energy all the time and they stop working at night and on rainy days. Then a question comes: Is it possible to make them produce electricity all the time?

Scientists at Suzhou University, China, have invented a new solar panel. It can produce electricity not only from solar energy but also from the falling rain. When a raindrop falls on the solar panel and then rolls（滚动）down, it creates friction（摩擦力）on the surface of the panel, which can then be turned into electricity.

Sun Baoquan is one of the inventors. “Our new invention can produce electricity almost in any weather during the day,” he says. “It can even provide electricity at night if there is rain.”

The solar panel, however, does not make a lot of electricity from falling rain. So Sun Baoquan is still working hard to improve it. The scientist also wants to make solar panels more flexible, which can be as soft as clothing. Solar energy is a kind of clean, safe and cheap energy. The field of solar energy is developing fast. Scientists around the world have been improving solar panels. Some have been working on ways to join solar panels and wind power together. Some have been trying to use sunlight to produce liquid（液体的）and gas fuels. They hope they can serve people better with more green energy.

【推荐2】Robots have built a big house in Switzerland using 3D-printed materials (材料). It is the first house made by robots for people to live in. It is better for the environment and safer than man-made houses.

The creators (创建者) say the big house will improve the future of building. “This is a new way seeing architecture(建筑),” said one of the creators. “How you build is important.”

The big house was built completely from robot-made materials. It used 60% less cement (水泥) than a man-made house. Its ceilings　(天花板) were made with a 3D printer. There are 35 parts in the house and each one was built in 60 to 90 minutes. It was so surprising that the robots could build the full house in such a short time.

It is not the first time for robots to build houses. The Chinese used 3D printers to build 10 houses in a day in 2014. They built a building the next year. And last year Italians built a house in just 48 hours.

Scientists say one day they could send robots to build houses on the moon. We are ready to know about how we’re building for the future.

【推荐1】The Japanese school system(体系) is different from the rest of the world.

Most schools have a three-term system with new school years starting every April. There are six grades in the elementary school (小学). Japan has one of the longest school days in the world. Even after the school ends, children still have other homework to keep them busy.

School holidays are six weeks long during the summer break and about two weeks long in whether the winter or the spring break.

Every class has its own classroom. During elementary education, in most cases, one teacher teaches all of the subjects in each class. The number of the students in one class is usually under 40.

Here are some interesting facts about Japanese schools: Nearly all junior high schools require their students to wear school uniforms; most students in Japan really feel happy in school; students spend 205 minutes on language class and 165 minutes on science class every week ( in other countries, 215 and 200 minutes ), but they spend more time on math class-235 minutes every week( in other countries, 218 minutes ).

【推荐2】There is an old saying: Early to bed, early to rise (makes a man healthy, wealthy and wise). It means that we should go to bed early and get up early the next morning. By doing this, we will be in good health. And well also be rich and clever. It’s true that our bodies need to have enough sleep to be healthy. Children should have a ten-hour sleep every night. Those who do not have enough sleep can’t do their work very well. They will not be clever and they may not get wealthy in the future.

The body needs exercise, too. Walking, running, jumping, riding bikes and playing games are all exercise. Exercise helps to keep the body strong and fit. It also helps the blood（血液）to move around inside the body. The blood takes food to all parts of the body. The head needs blood, too. So exercise helps people think better.

【推荐1】Do you know Tippi Degre? She is from France. She was born in 1990.

Her parents are the photographers(摄影家) of animals. She lived with them in the forests in Africa for about ten years.

When she was young, she was very interested in animals. She danced with the ostriches(鸵鸟). She played with some tigers and lions. Sometimes they may hurt her, but at last they all became her good friends. She also played with some monkeys and she even fed them some milk. All the animals gave her so much interest and happiness. She lived her childhood(童年) in the forests. At the age of ten, she came back to Paris with her parents.

She wrote a book about her life in the forests with the lovely animals. In her book, she put some of her photos with animals. She hoped to ask more and more people to protect(保护) the wild(野外的) animals.

【推荐2】A few weeks ago, while I was driving to a friend’s house, I saw a mom and her child walking their dog along the road. The mom was wearing a really cool jumpsuit（连体衣）.

As I was driving past, I had my window down and shouted, “I love your jumpsuit!” She was surprised for a while and then smiled as I drove off.

After visiting my friend, I drove back and went to fill up my car. At the petrol station（加油站）, I saw the same woman again. As she was passing the entrance（入口）, I said, “Excuse me, were you just walking your dog not long ago?”

“Was that you? I was having such a bad morning and you really turned it around for me. Thank you,” she said with a big smile.

It made my heart sing and I almost cried. We gave each other a high five（击掌）and went on our way.

When you see something cool, just say it, as the person may need to hear it. When you feel excited to do something, act on it. You will make a difference.

【推荐3】On my latest trip to Sydney with my parents, we visited the wildlife Park.

The Wildlife Park has lots of different animals and birds. Some of them only live in Australia. there are over 600 animals there, such as kangaroos, koalas and crocodiles. People kept them in the natural environment. I like the wildlife Park better than a zoo, because most of the animals are in cages (笼子) in the zoo.

We first spent some time with the kangaroos. The park allowed us to touch and feed them. It was very exciting to be so close to them. There were koalas there too. They looked very lovely. Although the park didn’t allow us to carry them, I took a photo with one. It is wonderful souvenir (纪念品) of my holiday in Sydney.

The Wildlife Park has plenty of freshwater and saltwater crocodiles. Some of them are really big and scary (吓人的) with huge teeth. I didn’t want to get too close to them.

I enjoyed the trip very much. There was so much to see.