1) Who discovered cells, and how was it discovered ?
Answer:
Robert Hooke discovered cells in 1665 while examining a thin slice of cork through a self-designed microscope. He saw that the cork resembled the structure of a honey comb consisting of many little compartments. Those small boxes are called cells.
2) Why the cell is called the […]
NCERT Solutions for Class 9 Science Chapter 4 – Structure of the Atom
1)What are canal rays?
Soln:
Canal rays are radiations which are positively charged and was the key in the discovery of proton, another positively charged subatomic particle.
2) If an atom contains one electron and one proton, will it carry any […]
General Question: Illustrate the relationship between a mole, Avogadro’s number and Mass.
Q1. A reaction is taking place wherein, 5g of sodium carbonate reacts with 7.2 gm of ethanoic acid. The products are 4.2g carbon dioxide, 3g water and 5g […]
NCERT Solutions for Class 9 Science Chapter 1 – Matter in our Surroundings
Text Questions:
1) Which of the following is matter? Chair, air, love, smell, hate, almond, thought, cold, cold drink, smell of perfume.
Soln:
Chair, Air, Almond, Cold drink.
2) Give a reason for the following observation: The smell of hot sizzling food […]
CBSE has been announced the result of JEE Main 2017 on April 27. All of the applicants who participate in the engineering entrance examination can access their result in online mode. The scores of the applicants has been published in JEE Main 2017 result. The status of those applicants who have qualified for the second […]
JEE Main Syllabus 2018 gives details of the topics and chapters covered for section-wise weightage of JEE Main 2018 paper. JEE Main 2018 syllabus will be announced by CBSE. With the help of JEE Main syllabus 2018, the aspiring candidates will have a clear understanding on what to study and what to avoid. JEE Main 2018 […]
CBSE Syllabus is the list of topics and subtopics to be covered in the course of study during an academic year. CBSE syllabus includes the summary and gist of content to be gone through during teaching and learning process in a particular grade or class. CBSE issues syllabus booklets for classes 9, 10, 11 and 12. […]
ICSE Syllabus is extremely comprehensive and thorough. Great emphasis is laid on the learning of science, humanities and language. Although the volume of the syllabus is something students often complain about during school days, it really helps them cope up with higher education and competitive preparation later in life.
ICSE Syllabus focuses on […]
NEET (National Eligibility cum Entrance Test) is a qualifying entrance test conducted pan-India for students aspiring to pursue any medical courses at the graduate level like MBBS and BDS and also for some postgraduate courses in few selected medical colleges in India. For the graduate level courses, students passing […]
Council for the Indian School Certification Examination (CISCE) is likely to declare Indian Certificate of Secondary Education (ICSE) Class X Exam 2017 Result by third week of May. ICSE Class 10th Exams 2017 commenced on March 10 with English paper and ended on April 21 with Environmental Science (Group II) Elective paper.
The ICSE board exams […]
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