Nutrition and Health

Class 9 | Science Introduction to Nutrition: Healthy Eating: Carbohydrates: Proteins: Fats: Vitamins and Minerals: Water: Dietary Guidelines: Food Labels: Eating Disorders: Exercise and Physical Activity: Common Health Issues: Meal Planning: Food Safety: Dietary Preferences and Restrictions: Nutrition and Growth: Special Dietary Needs: Multiple Choice Questions Key Certainly, here are the answers to the 20…

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Real Numbers

Class 9 | Maths | Number Systems 1. Real Numbers: 2. Rational Numbers: 3. Irrational Numbers: 4. Decimal Expansion: 5. Euclid’s Division Lemma: 6. HCF (Highest Common Factor) and LCM (Least Common Multiple): 7. Fundamental Theorem of Arithmetic: 8. Prime Numbers: 9. Prime Factorization: 10. Properties of Real Numbers:– Closure property: The sum or product…

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Periodic Elements

Class 9 | TN State Board Science Key Concepts Atomic Structure: Periodic Table: Atomic Number (Z): Atomic Mass (Atomic Weight): Valence Electrons: Chemical Bonding: Periodic Trends: Noble Gases: Alkali Metals: Halogens: Transition Metals: Metals vs. Nonmetals: Metalloids: Fill in the Blank Questions Answer the following fill in the blank questions. Key Verify your answers.

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Euclid Geometry

Here are Euclid’s five common notions (axioms): Euclid’s Postulates: To give a concrete example, here are the five postulates from Euclid’s “Elements” that form the foundation of Euclidean geometry: Problem Prove that an equilateral triangle can be constucted on any given line segment.

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Addition and subtraction in polynomials

Concept Video Any Time Online Quiz A polynomial is a mathematical expression consisting of variables, coefficients, and mathematical operations such as addition, subtraction, and multiplication. It is composed of terms, where each term includes a variable raised to a non-negative integer exponent, multiplied by a coefficient. Polynomials can have one or multiple variables and can…

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Lines and angles – Summary

If a ray stands on a line, then the sum of the two adjacent angles so formed is 180° and viceversa.This property is called as the Linear pair axiom. If two lines intersect each other, then the vertically opposite angles are equal. If a transversal intersects two parallel lines, then(i) each pair of corresponding angles…

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STD09 Topics

Maths Number system Polynomials Coordinate geometry Linear equations Introduction to Euclid’s geometry Lines and angles Triangles – Criteria for congruent triangles Quadrilaterals | Sketch Notes | Herons formula | Sketch Notes | Areas of parallelogram and triangles Circles Constructions Surface area and volume Statistics Probability Science Matter in our surroundings Is matter around us pure…

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