CBSE Class Notes Online – Classnotes123
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Compare how potassium permanganate or copper sulfate dissolves in hot and cold water. Learn how temperature affects diffusion rates.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Activity 1.5: Comparing Diffusion Rates of Potassium Permanganate or Copper Sulfate in Hot and Cold Water Read MoreUse ink and honey to observe how particles diffuse and intermix in water. See how ink spreads quickly, while honey dissolves more slowly.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Activity 1.4: Adding Ink and Honey to Water to Observe Diffusion and Intermixing Read MoreSee how particles move and mix on their own in liquids. Use tea or lemonade preparation to understand diffusion and how particles spread evenly.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Activity 1.2: Observing Diffusion in Liquids (e.g., Making Tea, Lemonade) Read MoreObserve how ice melts into water and water boils into steam. Understand state changes like fusion and vaporization through this simple activity.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Activity 1.12: Heating and Observing the Melting of Ice and Boiling of Water Read MoreObserve the space between particles by dissolving sugar or salt in water. This activity shows how particles of one substance fit into the spaces between particles of another.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Activity 1.1: Demonstrating Particles of Matter Have Space Between Them Read MoreWhat is Matter? Matter is anything around us that has the following properties: It occupies space. It has mass (can be weighed). Matter can be found in different forms like …
Chapter 1 -MATTER IN OUR SURROUNDINGS -Class 9 – Simplified notes Read MoreHomogeneous and heterogeneous mixtures differ in composition and uniformity. A homogeneous mixture has a uniform appearance with no visible separation, like saltwater or air. In contrast, a heterogeneous mixture consists of distinguishable components, such as sand in water or salad. Learn key differences, characteristics, and examples in this easy-to-understand guide.
Difference Between Homogeneous and Heterogeneous Mixtures Read More