CBSE Class Notes Online – Classnotes123
CBSE Class Notes, Worksheets, Question Answers, Diagrams , Definitions , Diffrence between , Maths Concepts, Science Facts Online – Classnotes123
Basic Concepts of Science explained with their definition, Mechanism, structure, location, significances, functions ,uses explained with examples , diagrams and experiments.
Chemical elements are the basic building blocks of all matter. This guide explains atoms, elements, and the periodic table in simple terms for students. Learn how elements combine to form compounds, how they appear in nature, and how stars create them. Ideal for high school learners exploring chemistry fundamentals and real-life applications of science.
What Are Chemical Elements? A Complete Guide for Students Read More
Transition elements, or d-block metals (Groups 3–12), feature partially filled d-orbitals and exhibit unique properties such as variable oxidation states, colored compounds, and catalytic activity. Located centrally on the periodic table, they have high atomisation enthalpy due to strong metallic bonding and unpaired d-electrons. Inner transition elements include lanthanides and actinides with f-orbitals.
What Are Transition Elements? Properties, Periodic Table Location, and Atomisation Enthalpy Read More
Nuclear transmutation changes one element or isotope into another by altering protons or neutrons. It occurs naturally (e.g., in stars, radioactive decay) or artificially (e.g., in reactors, particle accelerators). This process is key to element formation, medical isotope production, nuclear energy, and waste reduction. While gold can be transmuted, it’s economically unfeasible.
Nuclear Transmutation: How Elements Change in Nature and Science Read MoreMatter, which occupies space and has mass, exhibits both physical and chemical properties. Physical traits like density or color may be extensive or intensive, while chemical traits involve transformations, such as flammability or reactivity. Matter exists in distinct states -solid, liquid, gas, plasma, and Bose-Einstein condensate each with unique behaviors. Specialized properties aid in scientific and industrial applications.
Properties of Matter: Physical, Chemical, and Functional Explained With Examples Read More
A solution is a homogeneous mixture of solute and solvent. Solutes dissolve in solvents without settling, forming a single-phase system. Solvents determine the solution’s state and aid dispersion. Solubility depends on factors like temperature, pressure, and polarity. Types of solutions and solvents vary by state and composition. Examples include saltwater, soda, alloys, and perfumes.
Solute, Solvent and Solution- Definition, Difference between, Characteristics, Examples Read More
Sublimation is when a solid turns straight into gas without melting into liquid. This happens with things like dry ice, mothballs, and even snow in cold places. It’s used in printing, food drying, and space science. Learn how it works and where you see it in daily life!
Sublimation- How Solids Turn Into Gas Without Melting Read More
Evaporation is a natural process where a liquid turns into gas at temperatures below its boiling point. This article breaks down the science behind evaporation, the factors that influence it-like heat, wind and humidity and how it plays a crucial role in cooling, weather cycles, and daily life.
The Science of Evaporation – Process, Factors, and Applications Read More
Evaporation isn’t just about drying puddles—it shapes our planet in surprising ways! From cooling trees to shrinking the Dead Sea and even helping forensic scientists solve crimes, this natural process plays a crucial role in weather, energy, and everyday life. Learn 15 real and unexpected facts about evaporation that will change how you think about water!
15 Surprising and Real Facts About Evaporation Read MoreLatent heat of steam is the energy required to convert water into steam without a temperature change. Water’s strong hydrogen bonds make its latent heat exceptionally high, requiring 2260 kJ/kg at 100°C. This property is essential in power plants, cooking, industries, and weather systems, making steam an efficient heat carrier in various applications.
Why is the Latent Heat of Steam So High? Find the Answer Read More
Why Steam Burns Are More Dangerous Than Boiling Water Burns | Explained
Why Steam Burns Are More Dangerous Than Boiling Water Burns Read More