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SUMMATIVE ASSESSMENT – II, 2014 Class – X, SAMPLE PAPER
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Find CBSE class 10th Guess paper for the for 2014 board examination. Question has been framed as per the analysis and facts that came from the previous year question papers
Find CBSE class 10th Science Sample paper for the second term examination. Question has been framed as per the syllabus covered in the second term examination
Cloning is the process of making a genetically identical organism through nonsexual means It has been used for many years to produce plants (even growing a plant from a cutting is a type of cloning). Animal cloning has been the subject of scientific experiments for years, but garnered little attention until the birth of the first cloned mammal in 1997, a sheep named Dolly. Since Dolly, several scientists have cloned other animals, including cows and mice. The recent success in cloning animals has sparked fierce debates among scientists, politicians and the general public about the use and morality of cloning plants, animals and possibly humans.
A. Answer these questions 1. Name the three life process help living being to procure energy from food? Answer: Three life processes that help living organisms to procure energy from food are: (i) Digestion (Nutrition) (ii) Respiration (iii) Transportation 2. What are Autotrophs? Name an organism other than other than green plant that is an autotroph. Answer: Autotrophs are organisms that can prepare their own food. Chlamydomonas is a type of green algae which is an example of an autotroph, other than green plants. Cyanobacteria are also an example of autotroph. 3. Name three type of heterotrophic nutrition Answer: Three types of heterotrophic nutrition are: (i) Saprophytic nutrition (ii) Parasitic nutrition (iii) Holozoic nutrition 4. What are enzymes? Answer: Enzymes are chemical substances that act as biological catalysts and are important for carrying out biochemical processes, such as digestion, in our body ...
Importatant Terms, Definitions and Results To locate the position of an object or a point in a plane, we require two perpendicular lines, one of them is horizontal and the other is vertical. The horizontal line is called the x-axis and the vertical line is called the y-axis. We call the plane, the cartesian plane, or the coordinate plane or the xy-plane. The axes are called the coordinate axes. The point of intersection of the axes (x-axis and y-axis) is called the origin. The coordinate axes divide the plane into four parts, called quadrants. The distance of a point from the y-axis is called its x-coordinate or abscissa. The distance of a point from the x-axis is called the y-coordinate or ordinate. If x ≠ y, then the position of (x, y) in the cartesian plane is different from the position of (y, x). It means the order of x and y is important in (x, y). Therefore, (x, y) is called an ordered pair. A point in a plane can be represented by an ordered pair (x, y), wher...
WHY DO WE FALL ILL CLASS-IX STUDY MATERIAL 1. Define health. Ans. Health is defined as the state of complete physical, mental and social well being. 2. What is disease? Ans. Disease is a departure from normal health through structural or functional disorder of the body. 3. What is the most important factor that keeps us healthy? Ans. Our social environment is an important factor in our individual health. 4. List any two conditions essential for good health. Ans. Conditions essential for good health are: i. to have a balanced diet and varied diet. ii. avoid wrong habits like drinking alcohol and drug consumption. 5. List any two conditions essential for being free of disease. Ans. Conditions essential for being free of disease are: i. maintain personal hygeine. ii. keep environment clean and hygiene. 6. Give examples of diseases which are caused by intrinsic sources and extrinsic sources. Ans. Diseases caused by intrinsic sources: Hea...
Central Public School,Samastipur And Sadhana Devi Vidyapith, Samastipur [Student Practice] Quadratic Equations : Contents 1. Standard form of a quad. Equations: ax 2 + bx + c = 0 (a ≠ 0) 2. Solution of the quadratic equations only real roots by (a) Factorization (b) Completing the square (c) Quadratic formula 3. Relationship between discriminant and nature of roots. if D > 0 => Real & Distinct Roots if D = 0 => Real & Equal Roots if D < 0 => No Real Roots 4. Problems related to day to day activities Learning Objective: To learn the following facts 1. A second degree Equation of the form ax 2 + bx + c = 0 where a, b, c are real numbers and a ≠ 0 are called quadratic eqn. 2. If ax 2 + bx + c = 0 equivalent to (x – a) (x – b) = 0 then x = a an...
9 th Chapter: sound –Guess Questions for practice 1. If you place some small blades on a drum, what will you observe when you beat this drum with a drum stick? Explain. 2. Describe an activity with a (a) metre scale (b) rubber band to show that only a vibrating body produces sound. 3. With the help of tuning fork demonstrate that sound is produced by a vibrating body. 4. What is vibrating in the following musical instruments producing by a musical sound? (a) Violin (b) drum (c) saxophone (d) flute (e) guitar (f) dholak (g) tabla (h) sitar 5. What is medium? What constitutes the medium? 6. Describe an activity to show sound travels faster through a solid medium than through a gaseous medium. 7. Describe an activity to show sound travels faster through a solid medium than through a liquid medium. 8. Describe the experiment to demonstrate that waves do not c...
Cloning is the process of making a genetically identical organism through nonsexual means
ReplyDeleteIt has been used for many years to produce plants (even growing a plant from a cutting is a type of cloning).
Animal cloning has been the subject of scientific experiments for years, but garnered little attention until the birth of the first cloned mammal in 1997, a sheep named Dolly.
Since Dolly, several scientists have cloned other animals, including cows and mice.
The recent success in cloning animals has sparked fierce debates among scientists, politicians and the general public about the use and morality of cloning plants, animals and possibly humans.