CBSE Class Notes Online – Classnotes123
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 More
Explore the structure, function, types, and locations of simple epithelial tissue in this detailed guide. Understand how these tissues line organs and cavities, facilitating essential functions like absorption, secretion, and filtration. Examples include skin, lungs, and digestive tract, each demonstrating the unique adaptations of epithelial cells in human anatomy.
Simple Epithelial Tissue- Structure, Function, Types, and Locations Explained with Examples Read MoreDiscover angiosperms, the largest group of plants. This article explores their distinctive characteristics, reproductive mechanisms, and classification. Learn how angiosperms develop from flowers to fruits, and understand their significant roles in ecosystems. Gain insights into the unique biological processes that define angiosperms, from pollination to seed development.
Angiosperms- Characteristics, Classification, and Reproductive Biology Read More
Lysosomes are membrane-bound organelles containing digestive enzymes, crucial for degrading cellular waste and pathogens, predominantly found in animal cells. Ribosomes, non-membrane-bound structures found in all living cells, are essential for protein synthesis, reading mRNA to assemble proteins. Understanding their distinct roles and structures highlights the complexity of cellular functions and organisation.
8 Key Differences Between Lysosomes and Ribosomes Read More