[KET] 🔬 Let’s learn about how particles act like waves

Let’s learn about how particles act like waves

🎧 Listen to today’s story

📚 Key Words

Word Meaning 中文
particle A very small piece of something. 微粒/粒子
scientist A person who studies how the world works. 科学家
strange Unusual or surprising. 奇怪的
wave How water moves up and down in the ocean. 波/波浪
duality Having two different parts or ways of acting. 双重性/二象性
stripe A long, thin line of color. 条纹
secret Something that is hidden or not known by many people. 秘密
mix To put two or more things together. 混合

📖 Read the story

Everything in our world is made of very small things. These are called particles. Think of them as tiny building blocks. Scientists use quantum physics to study them. This kind of science is very strange but interesting. Usually, people think particles are like small balls. But sometimes, they move like waves in the sea. This is called duality. It means one thing can act in two different ways. Scientists did a special test with two small holes. They sent particles through these holes. The particles did not hit the wall in two simple lines. Instead, they made many bright stripes. This happened because the particles moved like waves and mixed together. This shows us a big secret. Very small things can be both balls and waves at the same time. It is difficult to understand, but it is true! Would you like to study these tiny secrets one day?

✏️ Answer the questions

1. What are the small building blocks of everything called?

  • A.Big balls
  • B.Particles
  • C.Ocean waves
  • D.Bright stripes

2. How do particles sometimes move?

  • A.Like waves in the sea
  • B.Like heavy rocks
  • C.Only in straight lines
  • D.They do not move at all

3. What does the word ‘duality’ mean in the story?

  • A.Something is very big
  • B.Having two different parts
  • C.Being very fast
  • D.A type of science animal

4. What did the particles go through during the science test?

  • A.A big door
  • B.Two small holes
  • C.A tall mountain
  • D.A cold river

5. Why did the particles make stripes on the wall?

  • A.Because they were dirty
  • B.Because they acted like waves
  • C.Because they were very hot
  • D.Because they were square