CBSE Class Notes, Worksheets, Question Answers, Diagrams , Definitions , Diffrence between , Maths Concepts, Science Facts Online – Classnotes123
This experiment demonstrates that matter is made up of tiny particles. By diluting potassium permanganate or Dettol in water, observe how the particles spread evenly even after repeated dilution.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Dilution Experiment: Demonstrating the Small Size of Matter Particles Read MoreCompare evaporation rates under different conditions like wind, enclosed spaces, and rainy days. Learn how surface area, temperature, and humidity affect evaporation.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Activity 1.14: Exploring Evaporation Rates Under Different Conditions Read MoreStudy sublimation by heating camphor. Observe how a solid changes directly to a gas without becoming liquid, and notice the crystalline deposits on cooling.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Activity 1.13: Sublimation Experiment with Camphor Read MoreIdentify solids, liquids, and gases in your surroundings. Observe their properties, like fixed shape and volume in solids, fluidity in liquids, and compressibility in gases.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Activity 1.11: Observing States of Matter in Daily Life Scenarios Read MoreObserve how liquids flow and maintain a fixed volume by pouring them into different-shaped containers like glasses or bowls.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Activity 1.10: Investigating the Fluidity and Volume Retention of Liquids Read MoreInvestigate solids’ properties like definite shape, fixed volume, and incompressibility using everyday objects like a book or pen.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Activity 1.9: Investigating the Properties of Solids Like Definite Shape and Incompressibility Read MoreObserve surface tension by gently pressing water with your fingers. Learn how cohesive forces create a thin “film” on water’s surface.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Activity 1.8: Testing the Surface Tension of Water Using Fingers Read MoreTest the strength of solids like an iron nail, chalk, and rubber band. Learn how bond strength affects their properties.
Class 9 Science- Chapter 1- Matter In Our Surroundings -Activity 1.7: Testing the Strength of Bonds in Different Solids Read MoreUse human chains to model the forces of attraction in solids, liquids, and gases. Observe which bonds are strongest and weakest.
Class 9 Science- Chapter 1- Matter In Our Surroundings – Activity 1.6: Modeling Forces Between Particles Using Human Chains Read MoreCompare 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 More