Malayalam

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Pythagoras Principle

Pythagoras Theorem

a² + b² = c²

Watch the blocks from a² and b² fill c²

Test Your Knowledge

1. If a triangle has sides a=3 and b=4, what is c²?

Correct! 3² (9) + 4² (16) = 25.

2. Pythagoras theorem ONLY works on which type of triangle?

Correct! It only applies to triangles with a 90° angle.

3. If the Hypotenuse (c) is 10, and side (a) is 6, what is side (b)?

Correct! 100 - 36 = 64. The square root of 64 is 8.

Heart Function Class 9

Human Heart Circulation

Double Circulation Visualization

Deoxygenated (CO2 Rich)

Oxygenated (O2 Rich)

How it works:

1. Right Side (Blue): Blood enters from the body via the Vena Cava into the Right Atrium. It moves to the Right Ventricle and is pumped to the Lungs via the Pulmonary Artery.
2. Left Side (Red): Blood enters from the lungs via the Pulmonary Vein into the Left Atrium. It moves to the Left Ventricle and is pumped to the rest of the body via the Aorta.

immunity concepts

Match the Immunity Terms with Functions

Immunity

Antibody

Lymphocytes

Neutrophils

Non‑specific Immunity

Select function Body’s ability to resist diseases Proteins that neutralize antigens White blood cells for specific defense First line defense cells that engulf pathogens General defense against any pathogen

Select function Body’s ability to resist diseases Proteins that neutralize antigens White blood cells for specific defense First line defense cells that engulf pathogens General defense against any pathogen

Select function Body’s ability to resist diseases Proteins that neutralize antigens White blood cells for specific defense First line defense cells that engulf pathogens General defense against any pathogen

Select function Body’s ability to resist diseases Proteins that neutralize antigens White blood cells for specific defense First line defense cells that engulf pathogens General defense against any pathogen

Select function Body’s ability to resist diseases Proteins that neutralize antigens White blood cells for specific defense First line defense cells that engulf pathogens General defense against any pathogen

Heart Chambers Matching Activity

Match the Heart Chambers with Functions

Right Atrium

Right Ventricle

Left Atrium

Left Ventricle

Select function Receives oxygenated blood from lungs Pumps oxygenated blood to body Receives deoxygenated blood from body Pumps deoxygenated blood to lungs

Select function Receives oxygenated blood from lungs Pumps oxygenated blood to body Receives deoxygenated blood from body Pumps deoxygenated blood to lungs

Select function Receives oxygenated blood from lungs Pumps oxygenated blood to body Receives deoxygenated blood from body Pumps deoxygenated blood to lungs

Select function Receives oxygenated blood from lungs Pumps oxygenated blood to body Receives deoxygenated blood from body Pumps deoxygenated blood to lungs

Respiratory System Matching Activity

Match the Parts with Functions
Respiratory System

Nose

Trachea

Lungs

Alveoli

Diaphragm

Select function Filters and warms air Carries air to lungs Exchange of gases Helps in breathing movement Main breathing organs

Select function Filters and warms air Carries air to lungs Exchange of gases Helps in breathing movement Main breathing organs

Select function Filters and warms air Carries air to lungs Exchange of gases Helps in breathing movement Main breathing organs

Select function Filters and warms air Carries air to lungs Exchange of gases Helps in breathing movement Main breathing organs

Select function Filters and warms air Carries air to lungs Exchange of gases Helps in breathing movement Main breathing organs