Science

School Name: Himalaya Public School, Sector 13, Rohini, Delhi 110085 India Time: 40 Minute Marks: 20 Class: 11th Class Subject: Physics Date: 21/8/2019 NCERT 11th Class CBSE Physics Unit Test 2019 Question: 1. It the units of force and length each are doubled then how many times would the unit of energy be affected? [1] Question: …

NCERT 9th Class CBSE Science Unit Test 2019-20: Himalaya Public Sr Sec School, Rohini, New Delhi School Name: Himalaya Public School, Sector 13, Rohini, Delhi 110085 India Time: 40 minutes Marks: 20 Class: 9th Subject: Science Date: 27/8/2019 Question: 1. Explain the reason when a carpet is beaten with a stick, dust comes out of it. [1] …

10th CBSE Science Pre Board Exam 2020-21 School Name: Himalaya Public School, Sector 13, Rohini, Delhi 110085 India Time: 3 hours Maximum Marks: 80 Class: 10th Date: 18 / 01 / 2021 Subject: Science General Instructions: 10th CBSE Science Pre Board Exam 2020-21 The question paper comprises four sections A, B, C and D. There are 36 questions …

9th Science Mid Term Exam: Question Paper (2019-20) School Name: Himalayan Public School, Sector 13, Rohini, Delhi 110085 India Time: 3 hours Marks: 80 Date: 13/09/2019 Class: IX Subject: Science General Instructions: Section A: 9th Science Mid Term Exam Question: 1. During summer, water kept in earthen pot become cool due to phenomenon …

11th CBSE NCERT Chemistry Mid Term Exam Set B Question Paper (2019-20) Time: 3 Hrs. Marks: 70 Class: 11th Date: 13/09/2019 General Instructions: All questions are compulsory (11th CBSE NCERT Chemistry Mid Term Exam). Q’s 1 to 20 are of 1 mark each. Q’s 21 to 27 are of 2 marks each. Q’s …

Wastewater Story 7th Class NCERT CBSE Science Chapter 18 Question: Wastewater is fit for human consumption or not. Give reason to support your answer. Answer: No, because it is dirty and has many diseases causing organisms like cholera, typhoid etc. Question: Name two chemicals used to disinfect wastewater. Answer: Chlorine and ozone …

Forests: Our Lifeline 7th Class NCERT CBSE Science Chapter 17 Question: List some animals which live in deeper areas of the forest. Answer: Boars, bison, jackals, porcupines, elephants, etc., live in the deeper areas of the forest. Question: Paheli while moving in a forest observed that there was no noise pollution, though …

Water: A Precious Resource 7th Class NCERT CBSE Science Chapter 16 Question: Suggest one traditional way of storing water from ancient time. Answer: In ancient times, people used to make Bawris to store water. Question: What is the source of water in each of the following? Wells Ground Atmosphere Answer: The source …

Light 7th Class NCERT CBSE Science Chapter 15 Question: Briefly mention whether mirror change the direction of light. Answer: Yes, when a ray of light is incident on the mirror surface, then the mirror changes the direction of light. Question: The image formed by a lens is always virtual, erect and smaller …

Electric Current and its Effects 7th Class NCERT CBSE Science Chapter 14 Question: Mention the name of the two devices that work on the basis of magnetic effects of current. Answer: The devices that work on the basis of magnetic effects of current are loudspeaker and electric bell. Electric Current and its …