🧪 MATTER & STATES OF MATTER
Grade 9 (Freshman Year) Chemistry(USA and India)
Matter And Different Types Of Changes
🌍 What Is Matter?
Matter is anything that has mass and takes up space.
● Has mass ⚖️ (can be weighed)
● Has volume 📦 (occupies space)
✅ Examples: water 💧, air 🌬️, book 📘, smoke 💨
❌ Not matter: light 💡, sound 🔊, heat 🔥, energy ⚡
“If you can put it in a box and weigh it, it’s matter.”
🧩 Properties of Matter
Properties are ways to describe matter.
🔹 Physical Properties
(Seen without changing the substance)
● Color🎨
● Shape
● Mass & volume
● Density
● State (solid/liquid/gas)
👉 Example: Ice is cold and solid ❄️
🔹 Chemical Properties
(Describe how matter changes into a new substance)
● Burning 🔥
● Rusting 🧲
● Reacting with acids 🧪
👉 Example: Iron rusting
Grade 9 (Freshman Year) Chemistry(USA and India)
Matter And Different Types Of Changes
🌍 What Is Matter?
Matter is anything that has mass and takes up space.
● Has mass ⚖️ (can be weighed)
● Has volume 📦 (occupies space)
✅ Examples: water 💧, air 🌬️, book 📘, smoke 💨
❌ Not matter: light 💡, sound 🔊, heat 🔥, energy ⚡
“If you can put it in a box and weigh it, it’s matter.”
🧩 Properties of Matter
Properties are ways to describe matter.
🔹 Physical Properties
(Seen without changing the substance)
● Color🎨
● Shape
● Mass & volume
● Density
● State (solid/liquid/gas)
👉 Example: Ice is cold and solid ❄️
🔹 Chemical Properties
(Describe how matter changes into a new substance)
● Burning 🔥
● Rusting 🧲
● Reacting with acids 🧪
👉 Example: Iron rusting
