General Science
I) Light:
Nature, Spectrum, Different colors and wavelengths, UV, IR, and LASER,
Reflection of Light, Refraction of Light, Total Internal Reflection of
Light, Lenses, Thin converging lens, Dispersion of light, particle
nature of light, Einstein’s photoelectric equation, photocells
II) Sound:
Hearing mechanism, Decibel, Frequency, Sound machines in the home and
around –, Microphone, Loudspeaker, Public address system,
Characteristics of a sound note, Formation of stationary waves in the
stretched string, Laws of vibrating strings, Beats, Doppler Effect,
Applications and limitations of Doppler Effect, Echoes, Absorption of
the sound wave, Reverberations, Fundamentals of Building acoustics,
Statement of Sabine's formula
III) Magnetism:
Polarity and relationship with current, Bar magnet, Magnetic lines of
force, Torque on a bar magnet in a magnetic field, Earth’s magnetic
field as a bar magnet, Tangent galvanometer, Vibration magnetometer,
Para, dia and ferromagnetic substances with examples, Electromagnets and
permanent magnets
IV) Acid, Base, and Salt:
Acid-base concepts; characteristics of acids and bases; acid-base
indicators; uses of acids and bases in daily life and caution in
handling them; social effects of misuse of acids; reason for acidity in
stomach and selection of the right food; pH; measurement and importance
of pH of substances; salts; characteristics of salts; the necessity of
salt in daily life; uses of salts in agriculture and industries
V) Water:
Properties of water; melting and boiling points of water; electrical
conductivity; structure of water; hydrogen bonding; sources of water;
sources of fresh water in Bangladesh; water quality parameters (color
and taste; turbidity; the presence of radioactive substances; the
presence of waste; dissolved oxygen; temperature; pH and salinity);
recycling of water; the role of water in the conservation of nature; the
necessity of quality water; purification of water (filtration;
chlorination; boiling and distillation); reasons for pollution of water
sources in Bangladesh; effects of water pollution on plants, animals and
human beings; effects of global warming on freshwater; strategy for
preventing water pollution and responsibility of citizens or public
awareness; prevention of water pollution by industries; prevention of
water pollution due to soil erosion from agricultural land; conservation
of water sources and development
VI) Our resources:
Soil; types of soil; soil pH; reasons and effects of soil pollution;
natural gas and its main compositions; processing, uses, and sources of
natural gas, petroleum, and coal; forestry; limitations and conservation
of our resources
VII) Polymer:
Natural and synthetic polymer; polymerization process; sources,
characteristics, and usage of natural and synthetic polymers;
manufacturing process, characteristics, and uses of fibers, silk, wool,
nylon, and rayon; physical and chemical properties of rubber and
plastic; the role of rubber and plastic for environmental imbalance;
aware of using rubber and plastic
VIII) Atmosphere:
Biosphere and Hydrosphere, Ionosphere, the role of oxygen, carbon
dioxide, and nitrogen. Potable and polluted water, Pasteurization.
IX) Food and Nutrition:
Elements of food; carbohydrates; protein; fats and lipids; vitamins;
types and sources of carbohydrates, proteins; nutritional value; menu of
a balanced diet; the pyramid of a balanced diet; body mass index (BMI);
fast food or junk food; preservation of food; various processes of
storing food; use of chemicals for preservation of foods and its
physiological effects
X) Biotechnology: Chromosome;
shape, structure and chemical composition of chromosome; nucleic acid;
deoxyribonucleic acid (DNA); ribonucleic acid (RNA); protein; gene; DNA
test; forensic test; genetic disorder in human beings; Biotechnology and
Genetic Engineering; cloning; social effects of cloning; transgenic
plants and animals; Use of biotechnology in agricultural, milk products
and pharmaceutics; Gene therapy; Genetically modified organism;
Nanotechnology; Pharmacology; Pharmacokinetics
XI) Disease and Healthcare:
Deficiency, Infection, Antiseptic, Antibiotics, Stroke, Heart Attack,
Blood Pressure, Hypertension, Diabetes, Dengue; Diarrhoea; Drug
addiction, Vaccination, Cataract, food poisoning, X-ray;
Ultrasonography; CT Scan; MRI; ECG; Endoscopy; Radiotherapy;
Chemotherapy; Angiography; uses risk and side-effects of above
techniques; the Basic concept of Cancer, AIDS, and Hepatitis.
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