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Matter Can Change- LECTURE - SERENA

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  • ✂️ If you cut paper, the shape changes,
    but it’s still paper.
  • 💡
    Other Examples:
  • ANSWER:
    It changes shape but stays the same thing — that’s a physical change.
  • It still stays clay
    — this is a physical change.
  • 🍳 If you cook an egg, the egg becomes hard and white.
    That’s a new form! (Chemical change)
  • What happens when you toast bread?
    A: It becomes a new color and taste — that’s a chemical change!
  • 🔍 How Can You Change Matter?
    You can bend, fold, tear, or cut some things.
  • 🍎 If you bite an apple, it’s still an apple
    – just in pieces. (Physical change)
  • This kind of change is called a physical change
    — it changes the shape or size, but not what it’s made of.
  • Sometimes,
    matter changes into something new.
  • 🧊 If ice melts, it becomes water.
    It’s still made of water. (Physical change)
  • This is called a chemical change
    — the material changes into something different.
  • These changes make them look different,
    but they are still the same thing.
  • You are not turning clay into something else
    you’re just making a new shape!
  • 🔥 Changing Matter
    into Something New
  • ❓Questions for You
    What happens if you cut a piece of fabric?
  • How has this clay been changed?
    A: It was rolled, pressed, or shaped — but it's still clay.
  • 🧾 Example:
    If you fold a piece of paper, it’s still paper.
  • 🔥 Example:
    If you burn wood or paper, it turns into ash and smoke. That is a new kind of matter.
  • 🧱 Shaping Clay
    You can squeeze, roll, cut, or shape clay into different forms.