CBSE Class 8 Science — Flashcards for Quick Revision

A: The main goal is not just to learn new facts, but to learn how to find new facts through investigation. Students should become young scientists who can ask focused questions, design simple experiments

A: Investigation in science means more than just looking at something and asking simple questions. It involves asking focused questions, designing ways to do simple experiments to answer those questions,

A: The root (on left pages) symbolizes the deep, solid foundation of knowledge that keeps us connected to our environment and heritage. The kite (on right pages) reminds us that curiosity must take fligh

A: A cell is the smallest structural and functional unit of all living organisms. It is called the basic unit of life because all living beings are made up of one or more cells, and all life processes oc

A: The three main parts are: 1) Cell membrane - controls entry and exit of materials, 2) Cytoplasm - contains cell components and where most life processes occur, 3) Nucleus - controls all cell activitie

A: Microorganisms (or microbes) are tiny living beings that cannot be seen with the naked eye. They include: Bacteria (like Lactobacillus), Fungi (like yeast), Protozoa (like Amoeba, Paramecium), some Al

A: Health is defined as 'a state of complete physical, mental, and social well-being, and not merely the absence of disease'. This means being healthy includes feeling good physically, staying positive m

A: A symptom is what we feel (like pain, tiredness, or dizziness). A sign is something that can be seen or measured (like fever, rash, high blood pressure, or swelling). Symptoms are subjective experienc

A: 1. Communicable diseases - caused by pathogens (bacteria, viruses, fungi, worms, protozoa) and can spread from person to person (e.g., typhoid, dengue, flu, chickenpox, COVID-19). 2. Non-communicable