CBSE Class Notes, Worksheets, Question Answers, Diagrams , Definitions , Diffrence between , Maths Concepts, Science Facts Online – Classnotes123
Use 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 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 MoreThe chapter “Crop Production and Management” explains important agricultural practices .It covers types of crops like Kharif and Rabi, preparing the soil, sowing seeds, using manure and fertilizers, irrigation methods, protecting crops from weeds, harvesting the crops, and storing the produce. It also highlights the importance of animal husbandry for producing food and supporting sustainable farming practices.
Chapter 1 Crop Production and Management Class 8 – Simplified notes Read MoreThe Khilafat Movement (1919-1924) was a pivotal campaign by Indian Muslims to safeguard the Ottoman Caliphate after World War I. It united Hindus and Muslims against British rule, fostering mass protests and political awakening. Despite its eventual decline, the movement influenced future independence efforts and highlighted the potential for communal unity in India.
The Khilafat Movement- Agitation for Ottoman Caliphate’s preservation Read MorePeriyar’s Self-Respect Movement played a crucial role in the fight against caste discrimination and was a significant force in promoting the dignity and rights of the untouchable communities in India.
Periyar E.V. Ramaswamy’s Self-Respect Movement -Chapter 7 – Women, Caste and Reform – Class 8 Read More