PERIODIC CLASSIFICATION OF ELEMENTS NOTES

PERIODIC CLASSIFICATION OF ELEMENTS NOTES Basic concepts – Matter – It is anything around us which has mass and which occupy space States of matter: – Solid Liquid Gas Plasma state (Occurs at extremely high temperature – 11,000° – 14,500° Fahrenheit or 150 million degrees Celsius) Bose Einstein condensates (temperatures very close to absolute zero … Read more

HEREDITY AND EVOLUTION EXERCISE QUESTIONS

HEREDITY AND EVOLUTION EXERCISE QUESTIONS   Q.2 Read the following statements and justify a)   Human evolution began approximately 7 crore years ago. The last dinosaurs disappeared approximately 7 crore year ago due to changes in environmental conditions. Monkey like animals evolved from lemur – like ancestors 4 crore years ago – The tail of these … Read more

Life Processes 1 Test.

Life Processes 1 Test. Dear students, sharing with you Life Processes 1 Test. This will help you for preparing for board exam. Q.1. (A) Choose and write the correct option:             (5 Marks) Water content of Blood Plasma is ……………… . 70% 90% 65% 50% In which part of cell, electron transfer chain reaction occurs? Cytoplasm … Read more

  HREDITY AND EVOLUTION TEST ANSWERS

HREDITY AND EVOLUTION TEST ANSWERS This will help you to prepare for your board exam. Q1. A Rewrite the statement by using correct option. ……. proposed a model for protein synthesis with the help of DNA in bacterial cells. Johann Gregor Mendel Walter and Sutton Francois Jacob and Jack Monad Hugo de Vries Information about … Read more

Gravitation Test Answers

Gravitation Test Answers Total marks – 40                                                                  Time – 2 Hrs.   Q 1 (A) Choose the correct alternatives            (5 marks)    Gravitation Test Answers If the distance between two objects increases 5 times, the gravitational force becomes times. (a) 5 (b) 15 (c) 1/25 (d) 25 The gravitational force on the surface of the … Read more

Gravitation Test

GRAVITATION TEST   Total marks – 40                                                                  Time – 2 Hrs. Q 1 (A) Choose the correct alternatives            ( 5 marks) GRAVITATION TEST If the distance between two objects increases 5 times, the gravitational force becomes times. (a) 5 (b) 15 (c) 1/25 (d) 25 The gravitational force on the surface of the Moon is … Read more

Heredity and Evolution Test

              HREDITY AND EVOLUTION CHAPTER ASSESMENT Q1. A Rewrite the statement by using correct option. ……. proposed a model for protein synthesis with the help of DNA in bacterial cells. Johann Gregor Mendel Walter and Sutton Francois Jacob and Jack Monad Hugo de Vries Information about protein synthesis is stored in the ……. mitochondria DNA … Read more

Heredity and Evolution Notes

HEREDITY AND EVOLUTION NOTES Heredity and Evolution Notes Basic Concepts – Gene – It is the basic physical and functional unit of heredity. Chromosome – It is a DNA molecule that consists of a part or all of the genetic material of an organism. OR  It is the microscopic threadlike part of the cell that … Read more

Heredity, Life Processes Quiz

Dear students, sharing with you Heredity, Life Processes Quiz. This quiz will help you to analyze your knowledge and preparation of these topics