Science Olympiad Syllabus for class 8 Online Classes

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Science Syllabus for Olympiads – Class 8
Crop Production and Management:
1) Agricultural practices
a. Kharif crop
b. Rabi crop
c. Summer crop
2) Steps involved in cultivating a crop
3) Basic practices of crop production
4) Preparation of soil
a. Agricultural implements
i. Plough
ii. Hoe
iii. Cultivator
5) Sowing
a. Selection of seeds
b. Traditional tool
c. Seed drill
6) Adding manure and fertilizers
a. Crop rotation
b. Advantages of manure
7) Irrigation
a. Sources of irrigation
b. Traditional methods of irrigation
c. Modern methods of irrigation
i. Sprinkler system
ii. Drip sytem
8) Protection from weeds
9) Harvesting
a. Threshing and winnowing
10) Storage of crops
11) Food from animals
Micro-organism:
1) Microorganism and their classification:
a. Bacteria
b. Fungi
c. Protozoa
d. Viruses
e. Algae
2) Place where microorganism live
3) Microorganism and us
a. Friendly microorganism

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b. Making curd and bread
c. Commercial use of microorganism
d. Medicinal use of microorganism
e. Vaccine
f. Increasing soil fertility
g. Cleaning the environment
4) Harmful microorganisms
a. Diseases causing microorganism in humans
b. Diseases causing microorganism in animals
c. Diseases causing microorganism in plants
d. Food poisoning
5) Food preservation
a. Chemical method
b. Preservation by common salt
c. Preservation by sugar
d. Preservation by oil and vinegar
e. Heat and cold treatments
f. Storage and packings
6) Nitrogen fixation
7) Nitrogen cycle
Synthetic Fibres and Plastics:
1) Synthetic fibres
2) Types of synthetic fibres
a. Rayon
b. Nylon
c. Polyester and acrylic
3) Characteristic of synthetic fibre
4) Plastics
a. Thermosetting
b. Thermoplastics
5) Plastics as a material of choice
6) Plastic and environment
a. Biodegradable and non-biodegradable substances
b. 5 R principle
Metal and Non-metals:
1) Metals, non-metals
a. Properties
b. Distinguish between metals and non-metals with the general properties (lustre,
conduction of electricity, heat, malleability, ductility, sonority, melting point,
boiling point, density, strength)
2) Classification of elements as metals & non-metals.
3) Corrosion of iron (rusting)
a. ways to prevent rusting (oiling, painting, chrome plating, galvanization, tinning)
(avoiding contact with air and water vapour).

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4) Uses of certain metals (iron, gold, copper, aluminium, zinc, lead, magnesium).
5) Metalloids and their metalloids
6) Chemical properties of metals and non-metals:
a. Reaction with oxygen
b. Reaction with water
c. Reaction with acids
d. Reaction with bases
e. Displacement reactions
7) Uses of metals and non-metals
Coal and Petroleum:
1) Inexhaustible and exhaustible natural resources
2) Coal
a. Coke
b. Coal tar
c. Coal gas
3) Petroleum
a. Refining of petroleum
b. Constituents of petroleum and their uses
4) Natural gas
5) Some limited natural resources
Combustion and Flame:
1) Combustion:
a. Combustible and non-combustible substances
b. Ignition temperature
c. Flammable and inflammable substances
2) Controlling of fire
3) Types of combustion
a. Rapid combustion
b. Spontaneous combustion
4) Flame
a. Materials forming flame on burning
b. Structure of a flame
5) Fuel
a. Efficiency of fuel: Calorific values
6) Burning of fuels leads to harmful products: Global warming, acid rain etc.
Conservation of Plants and Animals:
1) Deforestation and its causes
2) Consequences of deforestation: Drought, desertification etc.
3) Conservation of forest and wildlife
a. Protected Areas for Conservation

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i. Protected Areas
ii. National Park
iii. Wildlife Sanctuary
iv. Biosphere Reserve
4) Flora and fauna
5) Endemic species
6) Endangered animals
7) Red Data Book
8) Migration
9) Recycling of paper
10) Reforestation
Cells:
1) Cells and its discovery
2) Organisms show variety in cell number (multicellular, unicellular), shape and size
3) Plant cell: Cell organelles and their functions
4) Animal cell: Cell organelles and their functions
5) Diagrams of plant and animal cell
6) Only the following to be included: Cell wall, Cell membrane, Plastids, Nucleus, Vacuole,
Cytoplasm – their structure and functions
7) Differences between plant and animal cells
Reproduction in Animals:
1) Sexual reproduction in humans:
a. Main organs of male and female reproductive system
b. Fertilisation
c. Development of embryo
d. Viviparous and oviparous animals
e. Young ones to adults
2) Asexual reproduction
a. Budding
b. Binary fission
Force and Pressure:
1) Force – A Push or a Pull: Definition and examples
2) Forces are due to an interaction: Examples
3) Balanced and unbalanced forces
4) Exploring forces
a. A force can change the state of motion
b. A force can change the shape of an object
5) Contact forces: Muscular force, friction etc.
6) Non-contact force: Magnetic force, electrostatic force, gravitational force
7) Turning effect of force (moment of force): concept, definition and calculation
8) Pressure
a. Definition
b. Unit

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c. Calculation of pressure in simple cases
d. Atmospheric pressure
e. Pressure exerted by liquids (Qualitative only)
f. Pressure exerted by gases- Atmospheric pressure (Qualitative only)
Friction:
1) Force of friction
2) Factors affecting friction
3) Friction: A necessary evil
4) Ways to increase and reduce friction
5) Wheels reduce friction
6) Fluid friction
7) Sliding friction, rolling friction, kinetic friction
Sound:
1) Sources of sound
2) Sound as a longitudinal wave
3) Characteristics of a sound wave: Amplitude (Relate amplitude with loudness) and
Frequency
4) Sound needs a medium to propagate
5) Reflection and Absorption of sound
6) Relative speed of sound in different medium
7) Sound produced by vibrating object
8) Sound produced by humans
9) Pitch and Frequency
a. Pitch and frequency in relation to working of musical instruments (Wind,
membrane and String)
10) Mono tone
11) Amplitude, time period and frequency of a Vibration
a. Loudness and amplitude
12) Unit of loudness in decibels
13) Audible and inaudible Sounds
14) Noise and music
15) Noise pollution
a. Measure to limit noise pollution
Chemical Effects of Electric Current:
1) Conduction of electricity through electricity
a. Good/poor conducting liquids
2) Chemical effects of electric current
3) Electroplating
Some Natural Phenomena:
1) Lightning
2) Charging by rubbing

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3) Types of charges and their interaction
4) Transfer of charge
a. Electroscope
b. Earthing
5) The story of lightning
6) Do’s and Don’ts during a thunderstorm
7) Lightning conductor
8) Earthquakes
a. Causes
b. Protection against earthquakes
c. Seismographs
d. Richter scale
Light:
1) Reflection of light
a. Laws of reflection
b. Lateral inversion
c. Regular and diffused reflection
d. Multiple images
i. Kaleidoscope
2) Structure and care of eye
3) Visually impaired persons can read and write with the help of braille system
4)
5) Curved Mirrors:
a. Convex
b. Concave
c. Reflecting surface (Convex and Concave)
d. Uses of curved mirrors
e. Terms related to curved mirrors –Focus, Principal Axis, centre of curvature,
radius of curvature
f. Rules for making ray diagrams of Spherical mirrors.
g. Real and virtual Image
h. Ray diagrams with curved mirrors where real images are formed.
6) Dispersion of white light into constituent colours
Stars and Solar System:
1) Astronomy
2) Celestial objects
a. The moon:
i. Phases of moon
ii. Moon’s surface
b. The stars
c. Constellation
3) The solar system:
a. Sun
b. Planets

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c. Comets
d. Asteroids
e. Meteors and meteorites
f. Artificial satellites
Pollution of Air and Water
1) Air pollution
a. Substances which contaminate the air
b. Case study- Taj Mahal
c. Greenhouse effect
d. Global warming
e. Ways to reduce pollution
2) Water pollution
a. How does water get polluted?
b. What is potable water and how is water purified?
c. Ways to reduce water pollution