Science

NCERT 7th Class (CBSE) Science: Forests: Our Lifeline – Quiz 32 Multiple Choice Questions related to NCERT 7th Class (CBSE) Science: Forests: Our Lifeline – Quiz: Crown: The part of the tree above the stem that includes branches and leaves. Canopy: The uppermost tree branches of tall trees. Understorey: The …

Question: Define the following terms: Primary Consumers, Secondary Consumers, Scavengers, Dispersal of seeds, Global Warming. Answer: Definitions are as under: Primary Consumers: The primary consumer is the living organism that eats the producers, which are the plants. This means that all organisms that are classified as herbivores, also called plant-eaters, fall into the category of primary …

NCERT 7th Class (CBSE) Science: Water: A Precious Resource – Quiz 26 Multiple Choice Questions related to NCERT 7th Class (CBSE) Science: Water: A Precious Resource – Quiz: Glaciers: Large chunks of ice that floats in oceans. Infiltration: The seepage of rainwater from the surface of the soil. Surface water: …

Question: Define the following: Glacier, Iceberg, Snow, Hail, Frost. Answer: Glacier: It is large chunk of ice that moves like a river over the surface of land. Glaciers are found moving from high mountains and are a source of fresh water. Iceberg: It is a large piece of ice that has broken …

NCERT 7th Class (CBSE) Science: Light – Quiz 20 Multiple Choice Questions related to NCERT 7th Class (CBSE) Science: Light – Quiz: Lateral inversion means left looks like right and right looks like left in a mirror. Spectrum is the band of colours seen when the white light passes through …

Question: What do you means by lateral inversion? Answer: Lateral inversion means left looks like right and right looks like left in a mirror. Question: What is a spectrum? Answer: Spectrum is the band of colours seen when the white light passes through the prism and splits into seven colours. …

Question: Graphic represent the nature of the distance-time graph of motion of the given object – Answer: (1) An athlete running at a constant speed. (2) A train waiting at a station for another train pass by. Question: Differentiate between periodic and non periodic motion. Answer: Differentiate between periodic and non periodic …

Question: What is waste water? How it is produced? Schematically represent the process of waste water treatment. Answer: The used water that comes into drains from bathroom, toilets and kitchen. The process is: The waste water sewage reaches through domestic sewerage’s. Bar screens are used to remove large substances like cans …

NCERT 7th Class (CBSE) Science: Time and Motion – Quiz 19 Multiple Choice Questions related to NCERT 7th Class (CBSE) Science: Time and Motion – Quiz: Time Period: The time taken by a pendulum to complete one oscillation. Oscillation: One complete to and fro motion of a pendulum bob from its mean …

NCERT 7th Class (CBSE) Science: Wastewater Management – Quiz 24 Multiple Choice Questions related to NCERT 7th Class (CBSE) Science: Wastewater Management – Quiz: Waste water from houses, industries, hospitals etc. and lain water that runs over land containing waste matter such as excreta. It is necessary to treat sewage …