Jagranjosh.com, India’s leading education portal, presents CBSE Class 10 Science Practice Paper for Sumamtive Assessment-II, 2016-17. This practice paper is specially prepared by the subject experts after the brief analysis of previous year question papers. The paper contains entirely fresh questions picked from the most important topics of Science. This paper will help the students in understanding the depth with which a topic should be studied and prepare in a more effective way.
Importance of CBSE Class 10 Science Practice Paper, 2016 -2017:
This Science SA – II Practice Paper for CBSE Class 10, is set as per the latest CBSE exam pattern and aims at helping the students to prepare for the exam more effectively so as to get the desired results.
Solution for this practice paper will be out very soon. Till then, give it a try to solve the paper to check your preparation for the coming exams.
This Practice Paper will Help You:
• understand the latest examination pattern
• get aquainted to the important topics to be studied for SA – II Science Exam
Few sample questions from the Question Paper are given below:
Q. What is syngamy?
Q. What name is given to the 5 - 8% solution of ethanoic acid in water?
Q. Though the insecticides and pesticides are used in small concentrations to protect the plants from damage caused by insects and pests, but often a high concentration of these chemicals is detected in human beings. How does it happen?
Q. (a) Sexually reproduced offsprings are definite to exhibit variations from their parents. State any two reasons.
(b) How does the comparative embryology support evolution?
Q. How would you arrange two mirrors inclined to each other so that the incident ray at one mirror is parallel to the ray reflected from second mirror? Explain with the help of diagram.
Q. Give reasons for the following and name the phenomenon working behind the same:
(a) Objects appear to flicker when seen through a stream of hot air rising above a fire.
(b) A day on earth happens to be 4 minutes longer than its actual length.
(c) Sunlight illuminates a dense forest after passing through the canopy.
Q. A student traces the path of a ray of light passing through a rectangular slab for three different values of angle of incidence (∠i ) namely 30o, 45o and 60o. He extends the direction of incident ray by a dotted line and measures the perpendicular distance ‘l’ between the extended incident ray and the emergent ray. He will observe that:
(a) ‘l’ keeps on increasing with increase in angle of incidence
(b) ‘l’ keeps on decreasing with increase in angle of incidence
(c) ‘l’ remains the same for all three angles of incidence
(d) ‘l’ is the maximum for ∠i = 45o and is less than this value for ∠i = 30o and ∠i = 60o.
Q. Which of the following does not decrease while moving down the group of the periodic table?
(a) Atomic radius
(b) Metallic character
(c) Number of shells in the atom
(d) Valence electrons