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הרשמה הורדה חינם
רמה: בינוני

Scientists Develop Robotic Fish To “EAT” Microplastics

מאמר באנגלית לתרגול קריאה. כולל 5 מילים חדשות עם תרגום לעברית, 3 שאלות הבנת הנקרא, 5 שאלות לשיחה. מתאים לרמה בינונית.

Chinese scientists say they have developed a robotic fish that can remove microplastic particles from water environments. Researchers working on the project say the robots could help to clean up plastic pollution in oceans around the world.

The robotic swimmers are about 1.3 centimeters long. They are made of a soft chemical compound. The robots are designed to absorb microplastics while moving through the water.

The project was launched by a team at Sichuan University in southwestern China. The researchers said the robots have already performed well in shallow water and they plan to carry out more tests in deeper waters.

The robotic fish was built to target microplastic particles, which are smaller than five millimeters. Studies have confirmed that microplastic pollution has been discovered in many natural environments. The material comes from the breakdown of manufactured plastic products and industrial waste.

The team said the robots can be controlled by light. Turning “a near-infrared light laser” on and off causes the fish’s tail to move back and forth. The robotic fish can swim up to 2.76 body lengths per second. The researchers said this is faster than most similar soft robots.

The fish can take in different kinds of microplastics and even repair itself when damaged, the researchers said. And if a robot fish is accidentally eaten by a real fish, it could safely digest the material, the team added.

מילים חדשות מהטקסט

  • Pollution /pəˈluː.ʃən// noun זיהום

    damage caused by harmful substances or waste

    Car exhaust is the main reason for the city's pollution.

  • Absorb /əbˈzɔːrb/ verb לִסְפּוֹג

    to take something in

    Plants absorb carbon dioxide.

  • Shallow /ʃæl.oʊ/ adjective רָדוּד

    having only a short distance from the top to the bottom

    She told her children to stay in the shallow end.

  • Manufacture /mænjəˈfæktʃər/ verb יִצוּר

    to produce goods in large numbers

    He works for companies that manufacture car parts.

  • Digest /daɪˈdʒest/ verb לְעַכֵּל

    to change food in your stomach into substances

    I find that I don't digest meat easily.

שאלות לשיחה

אין כאן תשובה נכונה — אלה שאלות לתרגול דיבור, לבד או מול מורה.

  1. What is the greatest invention of the year?
  2. What do you think an inventor’s life is like?
  3. What is the world’s most dangerous invention?
  4. What is the coolest invention ever?
  5. Have you ever thought about inventing anything?

בדקו את עצמכם

3 שאלות. בחרו תשובה וקבלו בדיקה מיד.

  1. What is the nationality of the scientist that discovered robotic fish?

  2. The robots are designed for…

  3. The robot is controlled by what?

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