7th Class

Question: What is heat? Answer: Heat is a form of energy, entry or exit of which correspondingly increases or decreases internal energy of a body when no work is done on the body or by the body. Question: What is temperature? Answer: The degree of hotness and coldness of a body is called temperature of body. Thermometer …

Question: Define the following: Valency, Atomicity, Chemical Equation, Rusting, Galvanization, Crystallization. Answer: Definitions are as follows: Valency: The combining capacity of atoms of an element with the atoms of other elements is known as valency. Atomicity: The number of atoms that make up a molecule of an element is known …

NCERT 7th Class (CBSE) Science: Fibre to Fabric – Quiz 24 Multiple Choice Questions related to NCERT 7th Class (CBSE) Science: Fibre to Fabric – Quiz: Rearing: The process of domestication and rearing of animals. Shearing: The process of removal of fleece from the body of animals. Reeling: The process of taking out …

Question: What are natural Fibres? Answer: The fibres obtained from plants and animals are called natural fibres. For example, cotton from cotton bolls, jute from jute plant, silk from cocoon of silkworm and wool from hair of animals like sheep or goat. Question: List five animals from which wool is obtained? …

NCERT 7th Class (CBSE) Science: Nutrition in Animals – Quiz 23 Multiple Choice Questions related to NCERT 7th Class (CBSE) Science: Nutrition in Animals – Quiz: Pseudopodia: Finger – like projections of the body of Amoeba. Food Vacuoles: Tiny pockets of water in a cell to store food, formed as …

Question: How does a frog catch its prey? Answer: The frog uses its long sticky tongue to catch insects. Frogs have well-developed digestive system in which food is digested with the help of digestive juices. Question: How does a spider digests its food? Answer: A spider weaves a sticky web in which …

Nutrition in Plants Quiz: NCERT 7th Class (CBSE) Science 28 Multiple Choice Questions related to NCERT 7th Class (CBSE) Science: Nutrition in Plants Quiz: Nutrition is the process by which plants and animals obtains nutrients from their food. Autotrophs are green plants / organisms that make their own food using raw …

Question: What is nutrition? Answer: The process of taking in food by an organism and its utilization by the body is called nutrition. There are two types of nutrition: The mode of  nutrition in which organisms make food  themselves from simple substances is called autotrophic nutrition. For example plants. The mode of nutrition in …

NCERT 7th Class (CBSE) Science: Reproduction in Plants – Quiz 25 Multiple Choice Questions related to NCERT 7th Class (CBSE) Science: Reproduction in Plants – Quiz: The process of producing new offspring of one’s own kind is called Reproduction. Reproduction in which a single parent is involved is called Asexual …

Question: List three examples of reproduction in plants through underground roots. Answer: Some plants have underground stems that are swollen to store food and have buds which can grow into new plants. Some examples are: Tubers, bulbs, Rhizome and corm Tubers- For example: Potatoes Bulbs- For example: Onion, garlic, lily, tulip, …