Science VII

Physics
Heat
9 Topics
Hot and cold
Thermometer
Clinical Thermometer
Laboratory Thermometer
Conduction
Convection
Sea breeze and Land breeze
Radiation
Kinds of Clothes We Wear in Summer and Winter
Winds, Storms and Cyclones
 7 Topics
Air exerts Pressure
High-Speed Winds are Occupied by Reduced Air Pressure
Air expands on heating
Wind Currents are Generated due to Uneven Heating on the Earth
Thunderstorms and Cyclones
Destruction Caused by Cyclones
Effective Safety Measures
Motion and Time
 7 Topics
Slow of Fast
Speed and its Calculation
Uniform and Non-uniform Motion
Measurement of Time
Odometer and Speedometer
Introduction to Graphs
Draw a Graph
Electric Current and its Effects
 8 Topics
Electric Circuits and Their Symbols
Simple Electric Circuit
Making Our Own Switch
Heating Effect of Electric Current
Fuse and MCB
Magnetic Effect of Electric Current
Electromagnets
Electric Bell
Light
 10 Topics
Light Travels In A Straight Line
Reflection of Light
Image Formation by a Plane Mirror
Right-Left Inversion
Concave Mirror
Convex Mirror
Types of Images
Convex Lens
Concave Lens
Sunlight – White or Coloured?
Chemistry
Acids, Bases and Salts
9 Topics
Introduction to Acids and Bases
Indicator: Litmus
Indicator: Litmus and neutral compounds
Turmeric: A Natural Indicator
China Rose: A Natural Indicator
Phenolphthalein: A synthetic Indicator
Neutralization
Neutralisation in everyday life
Organic and Mineral Acids
Physical and Chemical Changes
 7 Topics
Introduction
Physical Changes
Chemical Changes
Some typical Chemical Changes
Rusting of Iron
Crystallisation
Photosynthesis and depletion of Ozone: A Chemical Change
Water: A Precious Resource
 8 Topics
Importance of water
Sources of water
Scarcity of water
Topic: Forms of Water and the Water Cycle
Water table
Depletion of layer
Mismanagement of water
Management of water
Wastewater Story
 11 Topics
Water : Our Lifeline
Sewage
The Composition of Sewage
The Sewerage System
Why should treat the Wastewater
Waste-water treatment Plant
Activity for the treatment of wastewater.
Better House Keeping Practices
Sanitation and Disease
ALTERNATIVE ARRANGEMENT FOR SEWAGE DISPOSAL
Sanitation in Public places
BIOLOGY
Nutrition in Plants
9 Topics
Modes of nutrition in plants
Photosynthesis — food making process in plants
Experimental approach to show that starch is formed during photosynthesis
Synthesis of plant food other than carbohydrates
Other modes of nutrition in plants- parasitic plants
Other modes of nutrition in plants- Insectivorous plants
Saprotrophs
Symbiosis
How nutrients are replenished in the soil
Nutrition in Animals
 6 Topics
Different ways of taking food in animals
Human digestive System
Absorption and assimilation
Types of teeth and their arrangement
Digestion in grass eating animals
Feeding and digestion in amoeba
Fibre to Fabric
 5 Topics
Animal fibres
Rearing and breeding of sheep
Processing fibres into wool
Life history of silk moth
Cocoon to silk formation
Weather, Climate and Adaptations of Animals of Climate
 5 Topics
weather
Climate
Climate and adaptation: polar regions
Climate and adaptation: tropical rainforest
Animal migration
Soil
 5 Topics
Soil teeming with life
Soil profile
Types of soil
Properties of Soil
Moisture and absorption in soil
Respiration in Organisms
 11 Topics
Respiration
Aerobic Respiration
Anaerobic Respiration -1
Anaerobic Respiration -2
Breathing
Mechanism of Breathing
Exchange of gases during breathing
Respiration in humans
Breathing in other animals-1
Breathing in other animals-2
Respiration in plants
Transportation Animals and Plants
 7 Topics
Blood-1
Blood-2
Blood vessels
Blood vessels-2
Heartbeat
Human Circulatory system; Heart-1
Human circulatory system -2
Reproduction in Plants
 5 Topics
Reproduction in Plants
Reproduction in Plants II
Asexual Reproduction in plants .
Reproduction in Plants .
Pollination and Fertilization
Forests: Our Lifeline
 10 Topics
Various forest animals in different zones
Various forest plants and trees in different zones
Various forest products
forest as habitat
Crown shapes of forest trees
Soil role in growth of forest and regeneration
How forests influence climate, water cycle and air quality?
What would happen if forests disappear by Deforestation?
Balance of oxygen and carbon dioxide
Forests protect the soil from erosion.
Previous Topic

How nutrients are replenished in the soil

Science VII Nutrition in Plants How nutrients are replenished in the soil

(fertilizers, manure, leguminous plants)

Previous Topic
Back to Lesson