TIME DEDICATED TO STUDIESDURING THE DAY: Paying attentionin class and being regular in schoolgives you an edge over other stu-dents. Teachers give you extra tipsthat you find in no books. If you

complete the day’s task on the same day, you justneed to put in a few extra hours without any compro-mise on other activities. I practised maths daily.

RIGHT WAY TO RELAX AND REJUVENATE:I use to switch off the Wi-fi when I studied. Duringbreaks, I would play with mysister, watch TV or checkmy mobile messages.

ANY DIETARY CHANGES:I did not diet nor exercise.However, I made it a point towalk around 15 to 20 minutesevery day. This was mainly toclear my mind. I also drank alot of water.

TIPS FOR ASPIRANTS: Donot listen to batch mates whoboast about what they havestudied, as this will only add to your stress. Focuson doing your best. Avoid distractions during studyhour; do not bother about studies when relaxing.Revise regularly and keep nothing pending.

06 “The secret of success is to do the commonthings uncommonly well.”

John D. Rockefeller MOCK PAPERS

GAUGE YOUR SCIENCE SKILLSThe faculty of Hyderabad Public School-Ramanthapur, Hyderabad have set a mock Science paper for you. See how well you fare..

These questions and the marks alongside aremeant for practice purpose only. Students are

advised to check format, syllabus and marks forBoard test papers with their teachers. Questions

have been given by teachers and NIE is notresponsible for them.

The butterfly-in-the-stomachphenomenon is common amongstudents appearing for their ex-

ams. This eu-stress aswe call it, can be ben-eficial and lead to en-hanced concentration.It even ensures clear-er goals and enablesstudents to focus and

carry out their studies in a disciplinedway. But what if it goes beyond thethreshold and disrupts performance?

Exam anxiety is a mental state ac-companied by an intense fear of fail-ure in exams, which is characterisedby physiological over-stimulation aswell as intense anxiety. The state gen-erally occurs before or during theexam and leads to a drastic drop inperformance and nervous breakdownleading to a vicious cycle.

Here are a few quick tips for thosefacing the problem:

1Maintain a daily timetable anddevelop a regular study habit.

Chalk out the details and hang it upin your study space

2Keep your study area well organised

3Prepare and revise. Revision isimportant for better retention.

Ensure you don’t cram just beforethe exam

4Complete one chapter thorough-ly and then move to the next

5Train yourself to write at leasttwo questions every day, timing

yourself and meeting the deadline

6Take bi-weekly short tests at home

7Indulge in self-talk and motivateyourself to do well in the exam

8Find at least 10 minutes of timefor exercise, yoga or anything that

relaxes your mind

9Get ample sleep

10Approach the exam with en-ergy and confidence. Positive

self talk can do a world of good toyour confidence

With these simple steps, examanxiety can be harnessed and dealtwith easily. For students who havetried, yet failed, these steps, theycan consult a counsellor who canguide and suggest further preven-tive measures.

Dealing with STRESS!!!Dr Ria Das, counsellor, DPS, Ruby Park, Kolkata,

provides tips on how students can handle anxietyand stress by following simple techniques…

“Avoid distractionsduring study hour”Khushi Bhojnagarwala, class XII,Sushila Birla Girls' School scored

98.20 % in her board exams.She shares her preparation

mantra with us...

GENERAL INSTRUCTIONS1. The question paper comprises two sections, Aand B. You are to attempt both the sections.2. All questions are compulsory.3. Answer section A and section B separately.4. There is an internal choice in two questions ofthree marks each and one question of five marks.5. Question numbers 1 and 2 in Section-A are onemark question. They are to be answered in oneword or in one sentence.6. Question numbers 3 to 5 in Section- A are twomarks questions. These are to be answered in 30words each.7. Question numbers 6 to 15 in Section-A are threemarks questions. These are to be answered inabout 50 words each.8. Question numbers 16 to 21 in Section-A are 5marks questions. These are to be answered in 70words each.

ANSWER THE FOLLOWING:SECTION A

Q.1 Identify the asexual method of reproductionin each of the following organisms: a) Spirogyra b) Planaria [1]Q.2 Name the following (a) The type of heterotrophic nutrition followedby Cuscuta.(b) Respiratory pigment present in blood. [1]Q.3 An element has electronic Configuration 2,8, 2a) What is the atomic number of this element?b) Determine its Valency.c) To which of the following element would it bechemically similar and why? Be (Z=4), O (Z=8) [2]Q.4 (i) With the help of scattering of light, ex-plain the reason for the difference in colours ofthe sun as it appears during sunrise/sunset.(ii) Why planets do not twinkle? [2]Q.5 What is ocean thermal energy? How can itbe harnessed to generate electricity? [2]Q.6 Name a device that helps to maintain a po-tential difference across a conductor in a circuit.When do we say that the potential differenceacross a conductor is 1 volt? Calculate the amountof work done in shifting a charge of 2 coulombsfrom a point A to B having potentials 10 V and 5V respectively

(OR)(a) Why do copper or aluminium wires general-ly used for electrical transmission and distribu-tion purposes ? (b) Two wires, one of copper and other of man-ganin, have equal lengths and equal resistances.Which wire is thicker ? Given that resistivity ofcopper is lower than that of manganin. [3]

Q.7 (i) What precautions should be taken to avoidthe overloading of domestic electric circuits ? (ii) An electric oven of 2 kW power rating is op-erated in a domestic electric circuit that has acurrent rating of 5A. If the supply voltage is 220V,what result do you expect? Explain. [3]Q.8 (a) Give an example each for electrolytic de-composition and photo chemical decompositionreactions. (b) When a green iron compound is heated strong-ly, its colour changes to black and odour of burn-ing sulphur is given out. (i) Name the compound (ii) State the type of reaction (iii) Write a balanced chemical equation involved in the above reaction. [3]Q.9 (a) State Modern periodic Law.(b) How does the atomic size of elements vary ingoing from(i) left to right in a period, (ii) top to bottom in a group? Give reason for youranswer. [3]Q.10 (a) How is the small intestine designed toabsorb the digested food? (b) Write the functions of the following (i) Kidneys (ii) Xylem(c) Why is diffusion insufficient to meet the oxy-gen requirements in multicellular organismslike humans?

(OR)(a) How are the lungs designed in human beingsto maximise the area for the exchange of gases?(b) Mention the role of the following which areassociated with the digestive system of humans(i) Bile juice (ii) Hydrochloric acid in stomach (c) Why are valves present in veins but not in ar-teries? [3]Q.11 Genetic composition of the father plays adeciding role in determining the gender of the

new-born child.?Comment and support your an-swer with a suitable illustration. [3] Q.12 (i) Explain the following terms related tospherical lenses(a) Principal focus (b) Optical center(ii) At what distance from a concave lens of fo-cal length 20cm, should a 6cm tall object be placedso that it forms an image at 15cm from the lens?Also find the size of the image formed [3]Q.13 When electricity is passed through a com-mon salt solution, sodium hydroxide is producedalong with the liberation of two gases X and Y.X burns with a pop sound where asY is used fordisinfecting drinking water.(a) Identify X and Y.(b) Give the chemical equation for the reactionstated above.(c) Write the reaction / equation of Y with dryslaked lime.

(OR)(a) What is an alkali ? Give an example.(b) Why do HCl, HNO3 etc show acidic charac-ters in aqueous solutions while solutions of com-pounds like alcohol and glucose do not show acidiccharacter? Describe an activity to illustrate this.[3]Q.14 (a) Name the animal to which the follow-ing fossil diagram belong to.

(b) How can we estimate the age of fossils?(c) Explain by taking any one example about in-terlink of evolution with classification. [3]Q.15 It is a well-known fact that pregnantwoman?s health is a backbone of every family,society and thus nation.

(a) Which tissue is responsible for providing nu-trition from mother to growing embryo(b) According to you, what can be the likely meas-ures to maintain woman health during preg-nancy? [3]Q.16 Briefly explain an activity to plot the mag-netic field lines around a bar magnet. Sketch thefield pattern for the same specifying field direc-tions. A region 'A' has magnetic field lines rela-tively closer than another region 'B'. Which re-gion has stronger magnetic field? Give reason tosupport your answer. [5]Q.17 A compound X is used in cough syrups andmany tonics. It is also soluble in water in all pro-portions.(a) Name the compound X. Write its chemicalformula. (b) A gas Y is evolved when the compound X re-acts with sodium ? How will you test the presenceof this gas ? Write the chemical equation involvedin reaction of X with sodium. (c) Some time bottoms of cooking vessels (getblackened) while cooking food. When and whydoes it so happen? [5]Q.18 (a) State the events in sequence that takeplace when an electrical impulse travels from adendritic tip of a nerve cell to another nerve cell.(b) Name the following :(i) The hormone that is secreted by our body todeal with scary situations(ii) The disease which a person is likely to suf-fer due to the deficiency of iodine.

(OR)(a) List the sequence of events that occur whena sensitive plant is exposed to a touch.(b) Answer the following with respect to nervoustissue:(i) How are these Tissues protected? (ii) How doesthe nervous tissue cause action? [5]Q.19 (a) List the parts of the human eye that con-trols the amount of light entering into it. Ex-plain how they perform this function. (b) Write the function of retina in human eye. (c) (i) What is hypermetropia?(ii) How can this defect of the eye corrected? Il-lustrate your answer by drawing ray diagramswith suitable lens. [5]Q.20 (a) Write balanced chemical equation forthe reactions taking place when(i) zincsulphide is roasted.(ii) cinnabar is heated in air(iii) magnese dioxide is heated with aluminiumpowder (b) Write the Electronic Configuration of Calci-um (Atomic no.20) and Chlorine (Atomic no.17)and explain the formation of Calcium chlorideby transfer of electrons. [5]Q.21 (a) Define Food chain. Give an example foraquatic food chain.(b) Among the given organisms identify the or-ganism that has the maximum concentration ofharmful chemicals if we form a food chain. Givereason for your answer: Rat , peacock, wheat grains, snake

(c) Name the two abiotic components of ecosys-tem. [5]

SECTION BQ.22 Four colourless samples of A,B,C and Dturned PH solution red, pink, blue and green re-spectively. Arrange the samples in the decreas-ing order of PH. [2]Q.23 Two chemical reactions are as follows:MgSO4 (aq) + Fe(s) gFeSO4 (aq) + Mg(s) ----------(i)FeSO4 (aq) + Mg(s) gMgSO4 (aq) + Fe(s) ----------(ii)Amongst the above reactions, which one is notpossible and why? [2]Q.24 A student while setting up the experimentto show that CO2 is given out during respirationmade some errors shown in the diagram. [2]

(a) What changes should be made in the set upto get the desired results? (b) Why are germination seeds preferred thandry deeds for this experiment? Q.25 A student is given the croton leaves to per-form mounting experiment. Write the steps doesthe student to follow. [2]Q.26 A student wants to project the image of acandle flame on a screen 48cm in front of a mir-ror by keeping the flame at a distance of 15 cmfrom its pole.(a) Suggest the type of mirror he should use (b) Find the linear magnification of the imageproduced.(c) How far is the image from its object?Q.27 A graph between potential difference (V)and current (I) is given in figure.

(a) What is the relation between V and I.(b) Find the resistance of the conductor usingthe graph. [2]

M O C K T E S T P A P E RSCIENCECLASS X

TOTAL MARKS 80