Class 7th Science
Biology
Nutrition in Plants
Nutrition in Plants : The nutrients present in the food help living organisms to build their body and to grow and repair damaged parts of the body.
Nutrition in Animals
Nutrition in Animals : Animals get their food from plants, either directly by eating plants or indirectly by eating animals that eat plants.
Fibre to Fabric
Fibre to Fabric : Selective breeding: This is a process of selecting parents so that the offspring can inherit selected set of special characters.
Weather, Climate and Adaptations of Animals to Climate
Weather : The weather of a place is the day-to-day conditions of the atmosphere with respect to the temperature, humidity, rainfall, wind speed etc
Soil
Soil : A process termed weathering results in the formation of soil. Weathering is the disintegration and decomposition of rocks and minerals over a period.
Respiration in Organisms
Respiration in Organisms : A process in living organisms involving the production of energy, typically with the intake of oxygen and release of carbon dioxide
Transportation in Animals and Plants
Transportation in Animals and Plants : The circulatory system is defined as the system which moves blood, oxygen and nutrients through the body.
Reproduction in Plants
Reproduction in Plants : The production of new individuals from parents is known as reproduction. Plants reproduce sexually as well as asexually.
Water: A Precious Resource
Water: A Precious Resource : Physical processes such as evaporation, condensation, precipitation and infiltration occur continuously one after the other
- Mock Test
- Sectional Test
- Advance Test
- Previous Year Test
Wastewater Story
Wastewater Story : Water is used for a variety of purposes in our everyday life. When used, this water becomes adulterated and is called waste water.
Chemistry
Acids, Bases and Salts
Acids, Bases and Salts : An indicator is a substance which illustrates the presence of a chemical substance by changing colour.
Physical and Chemical Changes
Physical and Chemical Changes : In a physical change, the changes are temporary and can be easily reversed to form the original substance.
Physic
Heat
Heat : Heat is a form of energy. We can feel heat by the sense of touch. This form of energy can be transferred between two objects with varying temperatures.
Winds, Storms and Cyclones
Winds, Storms and Cyclones : When we pour some fresh water over a heated can which contains boiling water, then it is observed that shape can gets distorted.
Motion and Time
Motion and Time : Motion refers to the change in the position of an object with respect to time. There are two states of an object:
Electric Current and its Effects
Electric Current and its Effects : The flow of charges through a circuit is called electric current. The SI unit of electric current is ampere and donated by A.
Light
Light : Light is defined as a radiation which is visible to the human eye. The natural source of light on the Earth is the Sun.