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Important question of science class 10

<h2>Group: A</h2>
<h3>Tick the correct alternative.</h3>
1. What is the SI unit of heat?
<ol style="list-style-type: lower-alpha;">
<li style="font-weight: 400;" aria-level="1">Joule</li>
<li style="font-weight: 400;" aria-level="1">Calorie</li>
<li style="font-weight: 400;" aria-level="1">Kelvin</li>
<li style="font-weight: 400;" aria-level="1">Degree Celsius</li>
</ol>
2. Which one of the following is a derived unit?
<ol style="list-style-type: lower-alpha;">
<li style="font-weight: 400;" aria-level="1">Kelvin</li>
<li style="font-weight: 400;" aria-level="1">Mole</li>
<li style="font-weight: 400;" aria-level="1">Hertz</li>
<li style="font-weight: 400;" aria-level="1">Candela</li>
</ol>
3. Which necessary condition is essential for green plants to make glucose as food using carbon dioxide and water?
<ol style="list-style-type: lower-alpha;">
<li style="font-weight: 400;" aria-level="1">sunlight</li>
<li style="font-weight: 400;" aria-level="1">heat</li>
<li style="font-weight: 400;" aria-level="1">catalyst</li>
<li style="font-weight: 400;" aria-level="1">pressure</li>
</ol>
4. Which phylum of the following has multi-cellular, sessile, and pore-bearer animals?
<ol style="list-style-type: lower-alpha;">
<li style="font-weight: 400;" aria-level="1">Annelida</li>
<li style="font-weight: 400;" aria-level="1">Porifera</li>
<li style="font-weight: 400;" aria-level="1">Coelenterate</li>
<li style="font-weight: 400;" aria-level="1">Mollusca</li>
</ol>
5. What are the locomotory organs of earthworms?
<ol style="list-style-type: lower-alpha;">
<li style="font-weight: 400;" aria-level="1">State</li>
<li style="font-weight: 400;" aria-level="1">Pseudopodia</li>
<li style="font-weight: 400;" aria-level="1">Tentacles&nbsp;</li>
<li style="font-weight: 400;" aria-level="1">Jointed legs</li>
</ol>
6. Which one of the following is always true about isomers?
<ol style="list-style-type: lower-alpha;">
<li style="font-weight: 400;" aria-level="1">Melting point</li>
<li style="font-weight: 400;" aria-level="1">Molecular formula</li>
<li style="font-weight: 400;" aria-level="1">Boiling point</li>
<li style="font-weight: 400;" aria-level="1">reactivity</li>
</ol>
7. What is the study of beekeeping called?
<ol style="list-style-type: lower-alpha;">
<li style="font-weight: 400;" aria-level="1">Metrology</li>
<li style="font-weight: 400;" aria-level="1">Sericulture</li>
<li style="font-weight: 400;" aria-level="1">Agriculture</li>
<li style="font-weight: 400;" aria-level="1">Zoology</li>
</ol>
8. Which of the following determines the baby boy in the embryo?
<ol style="list-style-type: lower-alpha;">
<li style="font-weight: 400;" aria-level="1">X-chromosome</li>
<li style="font-weight: 400;" aria-level="1">Y- chromosome</li>
<li style="font-weight: 400;" aria-level="1">Centrosome</li>
<li style="font-weight: 400;" aria-level="1">Autosome</li>
</ol>
9. What are the conditions required to manufacture ammonia using Haber&rsquo;s process?
<ol style="list-style-type: lower-alpha;">
<li style="font-weight: 400;" aria-level="1">Heat, pressure, and catalyst</li>
<li style="font-weight: 400;" aria-level="1">Heat, pressure, and promoter</li>
<li style="font-weight: 400;" aria-level="1">Pressure, catalyst, and promoter</li>
<li style="font-weight: 400;" aria-level="1">Heat, pressure, catalyst, and promoter</li>
</ol>
10. Who discovered the magnetic effect of electric current?
<ol style="list-style-type: lower-alpha;">
<li>Fleming</li>
<li>Dalton</li>
<li>Oersted</li>
<li>Farady</li>
</ol>
<h2>Group B ( VSAQ)</h2>
<h3>Answer the following questions in one word/ sentence.</h3>
11. What is scientific learning?
12. What are chordates and evolution?
13. What is beekeeping?
14. Why DNA is a genetic agent?
15. Define global warming.
16. State Pascal&rsquo;s law.
17. Define a saturated hydrocarbon.
18. State the right hand&rsquo;s grip rule.
19. Introduce Mendeleev&rsquo;s periodic law and the Modern periodic table.
<h2>Group C (SAQ)</h2>
<h3>Write a short answer to each of the following questions.</h3>
<ol start="20">
<li> Write any four adverse effects of acid rain.</li>
<li> Whales, fish, and crocodiles live in water. Based on their characteristics, write which is the most developed and which is the least developed. Explain with reasons.</li>
<li> Raman wants to investigate which color of an object has the highest capacity to absorb heat. He took four tin cans and painted them black, white, green, and red. He poured equal water into each can, closed the openings, and placed them in sunlight for an hour. After that, he measured the water temperature in each can using a thermometer. Answer the following questions based on this experiment.</li>
</ol>
<ol style="list-style-type: lower-roman;">
<li style="font-weight: 400;" aria-level="1">Write the independent and dependent variables.</li>
<li style="font-weight: 400;" aria-level="1">Which variables should be controlled by Raman? Explain.</li>
<li style="font-weight: 400;" aria-level="1">What is the hypothesis of this experiment?</li>
<li style="font-weight: 400;" aria-level="1">How will Raman ensure that the temperature measurements are accurate?</li>
<li style="font-weight: 400;" aria-level="1">How might Raman extend this experiment to test other factors that affect the absorption of heat by an object?</li>
</ol>
<ol start="23">
<li> Why honeybees are important pollinators.</li>
<li> Write the function of different valves in the heart.</li>
<li> Why hydroelectricity is green energy?</li>
<li> With what angles should a ray strike the surface of water to make an angle of refraction of &nbsp; 200 in water? The refractive index of water is 1.33.</li>
<li> What does Albert Einstein find the theory of relativity?</li>
<li> Define audio-visual materials. Write down any five characteristics of audio-visual materials and explain any two of them.</li>
<li> Why are Li, Na, and K placed in the same periodic table group?</li>
<li> Define non-biodegradable waste. Explain it with an example.</li>
<li> The weight of a piece of stone, when fully immersed in water, is 18N, displacing 4N of water. What is the weight of the stone in the air?</li>
<li> Why is Mercury heated faster than water?</li>
<li> Explain the feather and coin experiment.</li>
</ol>
<h2>Group D (LAQ)</h2>
<h3>Answer the following question in one paragraph or a few sentences.</h3>
34. Write the working method of a transformer.&nbsp;
35 . Study the given electronic configuration of the elements and answer the following questions:
<ol>
<li> 2,8,1 &nbsp; &nbsp; &nbsp; B. 2,8&nbsp; &nbsp; &nbsp; C. 2,8,7&nbsp; &nbsp; D.1</li>
</ol>
<ol style="list-style-type: lower-roman;">
<li style="font-weight: 400;" aria-level="1">Give the names of a metal and a non-metal from above.</li>
<li style="font-weight: 400;" aria-level="1">Which one of the above elements is inert and why?</li>
<li style="font-weight: 400;" aria-level="1">Identify the elements that are placed in Group 17 and Group 1.</li>
</ol>
36. A sphere of mass 40 kg is attracted by another sphere of mass 15 kg with a force of 9.8x10⁻⁷ N. Find the value of the universal gravitational constant if the centers of spheres are 20 cm apart.
37. Study the given diagram to answer the following questions.&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
<table style="border-collapse: collapse; width: 97.0492%;" border="4">
<tbody>
<tr>
<td style="width: 53.9683%;">
RR
</td>
<td style="width: 46.0317%;">
Rr
</td>
</tr>
<tr>
<td style="width: 53.9683%;">
Rr
</td>
<td style="width: 46.0317%;">
rr
</td>
</tr>
</tbody>
</table>
<ol style="list-style-type: lower-roman;">
<li style="font-weight: 400;" aria-level="1">Which filial generation is shown in the given diagram?</li>
<li style="font-weight: 400;" aria-level="1">How does it support the law of purity of gametes?</li>
<li style="font-weight: 400;" aria-level="1">Write the phenotype and genotype of the generation.</li>
<li style="font-weight: 400;" aria-level="1">Mention the character of the parents who participated in it.</li>
</ol>
38. Study the given diagram and answer the questions below.
<img src="https://d1k0ex3y89plmw.cloudfront.net/media/public/gallery_file_path/2024_03_13_16_11_00_abv.png" alt="" width="352" height="298" />
<ol style="list-style-type: lower-roman;">
<li style="font-weight: 400;" aria-level="1">Find the mistake in the apparatus set up in the given diagram.</li>
<li style="font-weight: 400;" aria-level="1">Redraw the given diagram and label it correctly.</li>
<li style="font-weight: 400;" aria-level="1">Which gas is being produced? Write the balanced chemical equation of the reaction. Write on its use.</li>
</ol>
39. Why is Mercury heated faster than water? The temperature of the water is 50C in the winter season. If 20 liters of water have to be heated to 350C to take a bath, calculate the amount of heat required.( specific heat capacity of water if 4200JK$g^{-1}$ $^0C^{-1}$, mass of 1 litre of water = 1Kg).
40. What is the vision defect in the eye shown in the given figure? What is to be done to correct this defect of vision? Explain.
<img src="https://d1k0ex3y89plmw.cloudfront.net/media/public/gallery_file_path/2024_03_13_16_10_19_ab.png" alt="" width="504" height="236" />

Explore Class 10 Science Model Question set 3 solution provided by CDC Nepal for SEE appearing Students for year 2080.

Grade 10 Science Model Questions

SEE Model Question Paper 2078/2079 with answer sheet of all subjects. SEE Model Question paper with answer sheet of science,Nepali, Compulsory Maths, Social, EPH, Computer and Optional Maths. Here, you'll find the questions model of the previous year's SEE Exam which can be a reference material for this year's Examination.