SilverZone - IOS PDF Sample Papers for Class 7
Class 7 sample paper & practice questions for International Olympiad of Science (IOS) level 1 are given below. Syllabus for level 1 is also mentioned for these exams. You can refer these sample paper & quiz for preparing for the exam.
Q.1 |
Which of the following is the best thing to do during heavy lightning? |
| a) |
Lying on the ground in an open place |
| b) | Going into the nearest water body |
| c) | Staying indoors away from metallic doors or windows |
| d) | Standing under a tall tree |
Q.2 |
A car having an odometre reading 234562 km as recorded at 6 am is moving at a speed of 2 km/min. What would be the odometre reading at 6:40 am? |
| a) |
234602 km |
| b) | 234642 km |
| c) | 234565 km |
| d) | 234655 km |
Q.3 |
Complete the following equation:- 2 Mg (s) + O2 (g)→ |
| a) |
2 Mg(s) |
| b) | 2 MgO (s) |
| c) | 2 MgO (l) |
| d) | MgO(s) |
Q.4 |
(2,3), (3,5), (5,7), (7,11), (11,13), (?) |
| a) |
(13,15) |
| b) | (15,16) |
| c) | (13,17) |
| d) | (13,19) |
Q.5 |
Dia was performing an experiment which includes the following steps: Step 1: Two drops of sulphuric acid were added to 1 g of copper sulphate powder and then a small amount of hot water was added to dissolve it. Step 2: On cooling, beautifully blue coloured crystals got separated. Identify the changes that took place in step 1 and step 2. |
| a) |
Step 1 - Physical change, Step - 2 Chemical change |
| b) | Step 1 - Chemical change, Step - 2 Chemical change |
| c) | Step 1 - Physical change, Step - 2 Physical change |
| d) | Step 1 - Chemical change, Step - 2 Physical change |
Q.6 |
In summers, if milk is not refrigerated, it becomes sour. Which of the following is added by milkmen to fresh milk to prevent the milk from spoiling? (NSO, 2011) |
| a) |
Caustic soda |
| b) | Potash alum |
| c) | Baking soda |
| d) | Lime water |
Q.7 |
Magnesium hydroxide, obtained when magnesium oxide is dissolved in water, is _________________. |
| a) |
a base |
| b) | an indicator |
| c) | an acid |
| d) | a dissolving agent |
Q.8 |
Choose the missing term out of the given alternatives: DF, GJ, KM, NQ, RT, ? |
| a) |
UW |
| b) | YZ |
| c) | XZ |
| d) | UX |
Q.9 |
Which of the following statements is/are correct? |
| a) |
The level of expansion of mercury is used to measure the temperature of a substance using a thermometre. |
| b) | A clinical thermometre measures temperature more accurately than laboratory thermometre. |
| c) | The normal temperature of a human is the average body temperature of a large number of a healthy person. |
| d) | All of these |
Q.10 |
Fill in the blank: The average weather pattern taken over a long time is called the ____________. |
| a) |
Rainfall of the place |
| b) | Climate of the place |
| c) | Temperature of the place |
| d) | Humidity of the place |
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Sample PDF of SilverZone - International Olympiad of Science (IOS) PDF Sample Papers for Class 7:
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Answers to Sample Questions from Olympiad Success:
Q.1 : c | Q.2 : b | Q.3 : b | Q.4 : c | Q.5 : c | Q.6 : c | Q.7 : a | Q.8 : d | Q.9 : d | Q.10 : b
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