SOF - NSO Level 2 Sample Papers for Class 7
Class 7 sample paper & practice questions for the level 2 of National Science Olympiad (NSO) are given below. Syllabus for level 2 is also mentioned for these exams. You can refer these sample paper & quiz for preparing for the exam.
Q.1 |
Herbivores do not produce enzymes that digest cellulose. How does the cellulose in their food get digested? |
| a) |
Algae in their gut convert the cellulose into simple sugars. |
| b) | Bacteria in their gut convert the cellulose into glucose. |
| c) | Viruses in their gut convert the cellulose into simple sugars. |
| d) | Fungi in their gut convert the cellulose into simple sugars. |
Q.2 |
Which of the following is due to global warming? (i) An increase in the water level in the sea (ii) The melting of snow on mountain peaks (iii) A decrease in food production by plants |
| a) |
(i) only |
| b) | (ii) only |
| c) | (i) and (ii) |
| d) | (i), (ii) and (iii) |
Q.3 |
On adding phenolphthalein indicator to a colourless solution, no change is observed. What is the nature of this solution? |
| a) |
Basic |
| b) | Either acidic or basic |
| c) | Either acidic or neutral |
| d) | Either basic or neutral |
Q.4 |
A compass is often used to indicate direction. Which one of the following is not true about the compass needle? |
| a) |
It is made of steel. |
| b) | It must be freely suspended in order to work. |
| c) | It is a magnetised object. |
| d) | It always points in the East-West direction. |
Q.5 |
Which of the following statements is true about convection? |
| a) |
In solids, heat is transferred only by convection. |
| b) | Convection occurs in cold liquids. |
| c) | Convection requires a medium for transmission. |
| d) | Heat flows from the cold end to the hot end in a substance. |
Q.6 |
Based on the given information, which statement is true about the importance of soil to plants? (i) Soil supplies plants with food (ii) Soil supplies plants with minerals (iii) Soil supplies plants with air and water |
| a) |
(i) only |
| b) | (ii) and (iii) only |
| c) | (i) and (ii) only |
| d) | (i), (ii) and (iii) |
Q.7 |
Conduction of heat does not take place in:
|
| a) |
Copper |
| b) | Iron |
| c) | Aluminum |
| d) | Vacuum |
Q.8 |
Expansion of a substance on heating depends on: |
| a) |
nature of the substance |
| b) | rise in temperature |
| c) | both A and B |
| d) | colour of the substance |
Q.9 |
Which of the following conditions enables heat to flow from one body to another identical body? |
| a) |
The difference in the temperatures of the two bodies |
| b) | The difference in the pressures exerted on the two bodies |
| c) | The difference in the densities of the two bodies |
| d) | The difference in the sizes of the two bodies |
Q.10 |
Anita gets a home assignment to prepare a file of fabrics made up of different fibers. She takes a piece of fabric and burns it to identify the fiber. It burns with a smell of burning plastic. What does this show? |
| a) |
The fabric is made up of cotton. |
| b) | The fabric is made up of expensive material. |
| c) | The fabric is made up of pure wool. |
| d) | The fabric is made up of synthetic fibers. |
Your Score: 0/10
Answers to Sample Questions from Olympiad Success:
Q.1 : b | Q.2 : d | Q.3 : c | Q.4 : d | Q.5 : c | Q.6 : b | Q.7 : d | Q.8 : c | Q.9 : a | Q.10 : d
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