CBSE Class 10 Science Practical List of Experiments
LIST OF EXPERIMENTS (Class X) 1. To find the pH of the following samples by using pH paper/universal indicator. i) Dilute Hydrochloric acid ii) Dilute NaOH solution iii) Dilute Ethanoic acid solution iv) Lemon juice v) Water vi) Dilute Sodium Bicarbonate Solution. 2. To study…
CBSE Class 10 Science Practicals List of Experiments
LIST OF EXPERIMENTS (Only for MCQ Paper) 1. To Prepare a) A true solution of common Salt and alum b) A suspension of soil, chalk powder and fine sand in water c) A colloidal of starch in water and egg albumin in water and distinguish between these on the basis of i)…
CBSE Class 10 Science Practicals Categories of Practical Science
CATEGORIES OF PRACTICAL SKILLS A. Procedural and Manipulative Skills To " select appropriate apparatus / instruments for performing the experiment. " know the limitations of the apparatus/instruments regarding their size, least count and accuracy. " arrange / assemble…
NCERT Class 10 Science The Human Eye and Colourful World
The Human Eye and the Colourful World You have studied in the previous chapter about refraction of light by lenses. You also studied the nature, position and relative size of images formed by lenses. How can these ideas help us in the study of the human eye? The human eye uses…
NCERT Class 10 Science The Human Eye and Colourful World Questions
The Human Eye and the Colourful World Multiple Choice Questions 1. A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power (a) + 0.5 D (b) – 0.5 D (c) + 0.2 D (d) – 0.2 D 2. A student sitting on the last bench can read the…
NCERT Class 10 Science The Human Eye and Colourful World Answers
Please refer to attached file for NCERT Class 10 Science The Human Eye and Colourful World Answers
NCERT Class 10 Science Sources of Energy
In Class IX, we learnt that the total energy during a physical or chemical process is conserved. Why, then, do we hear so much about the energy crisis? If energy can neither be created nor destroyed, we should have no worries! We should be able to perform endless activities…
NCERT Class 10 Science Sources of Energy Questions
Sources of Energy Multiple Choice Questions 1. Which of the following is a non-renewable source of energy? (a) Wood (b) Sun (c) Fossil fuels (d) Wind 2. Acid rain happens because (a) sun leads to heating of upper layer of atmosphere (b) burning of fossil fuels release oxides…
NCERT Class 10 Science Sources of Energy Answers
NCERT Class 10 Science Sources of Energy Answers. Download NCERT Chapters and Books in pdf format. Easy to print and read. Copies of these textbooks may be downloaded and used as textbooks or for reference. Refer to other chapters and books at other links (NCERT now providing…
NCERT Class 10 Science Periodic Classification of Elements
Periodic Classification of Elements In Class IX we have learnt that matter around us is present in the form of elements, compounds and mixtures and the elements contain atoms of only one type. Do you know how many elements are known till date? At present, 114 elements are…
NCERT Class 10 Science Periodic Classification of Elements Questions
Periodic Classification of Elements Multiple Choice Questions 1. Upto which element, the Law of Octaves was found to be applicable (a) Oxygen (b) Calcium (c) Cobalt (d) Potassium 2. According to Mendele′ev's Periodic Law, the elements were arranged in the periodic table in the…
NCERT Class 10 Science Periodic Classification of Elements Answers
Multiple Choice Questions 1. (b) 2. (c) 3. (a) 4. (b)5. (c) 6. (b) 7. (c) 8. (c)9. (b) 10. (b) 11. (d) 12. (d)13. (c) 14. (c) 15. (b) 16. (d)17. (b) 18. (b) 19. (c) 20. (c)21. (a) 22. (b) 23. (b) 24. (c)25. (b) 26. (a) Short Answer Questions 27. The arrangement of these…
NCERT Class 10 Science Our Environment
Our Environment We have heard the word ‘environment’ often being used on the television, in newspapers and by people around us. Our elders tell us that the ‘environment’ is not what it used to be earlier; others say that we should work in a healthy ‘environment’; and global…
NCERT Class 10 Science Our Environment Questions
Our Environment Multiple Choice Questions 1. Which one of the following is an artificial ecosystem? (a) Pond (b) Crop field (c) Lake (d) Forest 2. In a food chain, the third trophic level is always occupied by (a) carnivores (b) herbivores (c) decomposers (d) producers 3. An…