[KET] 🔬 Scientists Say: Topology

Scientists Say: Topology

🎧 Listen to today’s story

📚 Key Words

Word Meaning 中文
clay Soft earth that you can use to make shapes. 泥土 / 黏土
special Different and better than others. 特殊的
shape The form of something, like a circle or square. 形状
squeeze To press something hard with your hands. 挤压
pull To move something towards you.
break To damage something so it goes into pieces. 弄碎
balloon A small bag filled with air or water. 气球
surprising Something unusual that you do not expect. 令人惊讶的

📖 Read the story

Do you like playing with clay? Today we are learning about topology. This is a special and fun kind of math about shapes. Imagine you have some soft clay. You make a donut shape. A donut has one hole in the middle. Now, you can squeeze and pull the clay. You can change the donut into a coffee cup! You do not break the clay. You do not make any new holes. In this special math, a donut and a cup are the same shape because they both have only one hole. It is like a game. You can do this with a water balloon too. When you squeeze the balloon, it changes its shape. But it does not break. Math is not just about numbers. It can be very creative and surprising! What shape can you make today?

✏️ Answer the questions

1. What is topology?

  • A.A game with balloons
  • B.A special kind of math
  • C.A type of sweet food
  • D.A cup for hot coffee

2. How many holes does a donut have?

  • A.None
  • B.One
  • C.Two
  • D.Three

3. What can you change a clay donut into without breaking it?

  • A.A coffee cup
  • B.A computer
  • C.A book
  • D.A table

4. Why are a donut and a coffee cup the same shape in topology?

  • A.They are both sweet.
  • B.They have the same color.
  • C.They both have one hole.
  • D.They are both very hot.

5. What happens to a water balloon when you squeeze it?

  • A.It becomes a donut.
  • B.It gets bigger.
  • C.Its shape changes.
  • D.It turns into clay.