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Definitions on Science Subject Biology Biology: Biology is the branch of science that studies living organisms and life processes. Example: Studying plants and animals is biology. Living Organism: A living organism is any being that has life and can grow and reproduce. Example: Humans are living organisms. Non-living Thing: Non-living things do not have life and cannot grow or reproduce. Example: A stone is a non-living thing. Cell: A cell is the smallest unit of life in all living organisms. Example: The human body is made up of cells. Tissue: A tissue is a group of similar cells that work together to perform a function. Example: Muscle tissue helps in movement. Organ: An organ is made of different tissues working together to perform a specific function. Example: The heart is an organ. Organ System: An organ system is a group of organs working together to perform a major function. Example: The digestive system helps in digestion. Growth: G...

Definitions on Science Subject Chemistry Chemistry: Chemistry is the branch of science that studies substances, their composition, and their properties. Example: Studying how salt dissolves in water is chemistry. Matter: Matter is anything that has mass and occupies space. Example: Air and water are forms of matter. Element: An element is a pure substance made of only one kind of atom. Example: Oxygen is an element. Atom: An atom is the smallest unit of an element that takes part in a chemical reaction. Example: A hydrogen atom is very small. Molecule: A molecule is formed when two or more atoms join together. Example: A water molecule is made of hydrogen and oxygen. Compound: A compound is a substance formed when two or more elements chemically combine. Example: Water is a compound. Mixture: A mixture is made by mixing two or more substances without chemical bonding. Example: Sand and salt mixed together form a mixture. Solution: A solutio...

Definitions on Science Subject Physics  Physics: Physics is the branch of science that studies matter, energy, force, and motion. Example: The study of how a ball moves when kicked comes under physics. Matter: Matter is anything that has mass and occupies space. Example: Air, water, and stone are forms of matter. Mass: Mass is the amount of matter present in an object. Example: A brick has more mass than a book. Volume: Volume is the amount of space occupied by an object. Example: A bottle occupies more volume than a cup. Density: Density is the mass of an object per unit volume. Example: Iron is denser than wood, so it sinks in water. Force: Force is a push or pull that can change the shape or motion of an object. Example: Pushing a door to open it is applying force. Motion: Motion is the change in position of an object with time. Example: A moving car is in motion. Rest: An object is said to be at rest if it does not change its positio...

Topic :  Human body What is the human body? The human body is made up of many parts that work together. Name the main parts of the body. The main parts of the body are the head, neck, trunk, arms, and legs. What is the head? The head is the topmost part of the human body. What are eyes used for? Eyes are used to see objects around us. What do ears help us do? Ears help us hear different sounds. What is the function of the nose? The nose helps us breathe and smell. What does the mouth do? The mouth helps us eat food and speak. What are teeth used for? Teeth help us chew and bite food. How many sense organs do we have? We have five sense organs in our body. Name the five sense organs. The five sense organs are eyes, ears, nose, tongue, and skin. What does the tongue do? The tongue helps us taste different kinds of food. What is skin? Skin covers and protects our entire body. What is the brain? The brain controls all the activities o...

Animals and Their Homes 🐾 Animals and Their Homes Score: 0 / 0

Animals & Their Babies Quiz 🐾 Animals & Their Babies Quiz Score: 0 / 0