Andhra Pradesh (BIEAP)Class 8Subject library

Andhra Pradesh (BIEAP) Class 8 Biological Science

Chapter-wise notes, previous year papers, sample papers and Q&A for Andhra Pradesh (BIEAP) Class 8 biological science — free, syllabus-aligned, exam-ready.

11 chapters~154 min read totalFree · printable

Chapters

11 chapters — sequenced for revision and exam prep.

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What is Science?

What is SCIENCE? The scientific method — observation, hypothesis, experimentation, theory vs law. Scientific attitude. Contributions of Indian scientists C.V. Raman, J.C. Bose, and A.P.J. Abdul Kalam. AP Board Class 8 Biological Science Chapter 1.

AP Board (BSEAP)⏱ 14 minRead chapter

Cell — The Basic Unit of Life

CELL — the basic unit of life. Discovery by Robert Hooke (1665). Cell theory. Prokaryotic vs eukaryotic cells. Plant vs animal cell. Organelles — nucleus, mitochondria, ER, Golgi, chloroplast, vacuole. Cell membrane and cell wall. AP Board Class 8 Biological Science Chapter 2.

AP Board (BSEAP)⏱ 14 minRead chapter

Biological Science — Cell, Microorganisms, Reproduction & Ecosystems (AP Class 8)

Complete AP Class 8 Biological Science: CELL structure and function. MICROORGANISMS — friends and foes. REPRODUCTION in animals (sexual and asexual). ECOSYSTEMS and biodiversity. CONSERVATION of plants and animals. BSEAP Class 8 Biological Science with AP-specific environmental context.

AP Board (BSEAP)⏱ 14 minRead chapter

Story of Microorganisms

MICROORGANISMS — the invisible world. 5 groups — bacteria, fungi, protozoa, algae, viruses. Friendly uses in curd, bread, antibiotics, nitrogen fixation. Harmful microorganisms and diseases. Food preservation methods. Louis Pasteur's contributions. AP Board Class 8 Biological Science Chapter 3.

AP Board (BSEAP)⏱ 14 minRead chapter

Reproduction in Animals

REPRODUCTION in animals — sexual reproduction (gametes, fertilisation, zygote, embryo). Internal vs external fertilisation. In Vitro Fertilisation (IVF). Asexual reproduction (binary fission, budding). Metamorphosis in frog and silk moth. AP Board Class 8 Biological Science Chapter 4.

AP Board (BSEAP)⏱ 14 minRead chapter

Reaching the Age of Adolescence

ADOLESCENCE and puberty — the journey from childhood to adulthood. Secondary sexual characteristics. Hormones (testosterone, estrogen, thyroxine). Reproductive health. Menstrual cycle. Endocrine glands. Personal hygiene and nutritional needs. AP Board Class 8 Biological Science Chapter 5.

AP Board (BSEAP)⏱ 14 minRead chapter

Different Ecosystems

ECOSYSTEMS — components (biotic and abiotic). Producers, consumers, and decomposers. Food chain and food web. Energy flow (10% law). Ecological pyramids. AP-specific ecosystems — Eastern Ghats, Coringa mangroves, Godavari delta. AP Board Class 8 Biological Science Chapter 6.

AP Board (BSEAP)⏱ 14 minRead chapter

Food Production from Plants

FOOD PRODUCTION from plants — crop types (kharif, rabi, zaid). Agricultural practices — ploughing, sowing, irrigation, weeding, harvesting. Manures vs fertilisers. Crop rotation. Irrigation methods. Andhra Pradesh as the Rice Bowl of India. GM crops introduction. AP Board Class 8 Biological Science Chapter 7.

AP Board (BSEAP)⏱ 14 minRead chapter

Production and Management of Food from Animals

ANIMAL HUSBANDRY — cattle farming (milch and draught). Poultry farming (layers and broilers). Fisheries — marine, inland, composite fish culture. Andhra Pradesh's aquaculture industry — prawn and fish farming. Beekeeping / Apiculture. AP Board Class 8 Biological Science Chapter 8.

AP Board (BSEAP)⏱ 14 minRead chapter

Pollution of Air and Water

POLLUTION — air pollutants (CO, SO₂, NO₂, CFCs, particulate matter). Acid rain, ozone layer depletion. Greenhouse effect and global warming. Water pollution. Ganga Action Plan. AP-specific pollution — industrial pollution in Visakhapatnam, Godavari river conservation. AP Board Class 8 Biological Science Chapter 9.

AP Board (BSEAP)⏱ 14 minRead chapter

Why Do We Fall Ill?

HEALTH and disease — acute vs chronic, infectious vs non-infectious. Types of pathogens (bacterial, viral, protozoal, fungal). Means of disease spread. Prevention — vaccination and immunisation. Antibiotics. AP public health initiatives. AP Board Class 8 Biological Science Chapter 10.

AP Board (BSEAP)⏱ 14 minRead chapter