English medium Class 10th स्टूडेंट्स के लिए कक्षा 10 Science त्रैमासिक परीक्षा 2026 Model/Practice प्रश्न पत्र इस प्रकार हैं यह त्रैमासिक परीक्षा के ब्लू प्रिंट पर आधारित है इसमें महत्वपूर्ण प्रश्नों का समावेशन है . अभ्यास कर अपनी तैयारी जांचे
स्टूडेंट लाइव चैट में जुड़े अपने प्रश्न / परीक्षा सामग्री / आदि पर चर्चा करें
| Time: 3:00 Hours | Maximum Marks: 75 |
Instructions:
1. All questions are compulsory.
2. Question numbers 1 to 5 are objective type questions carrying 1 mark each (Total 30 marks).
3. Question numbers 6 to 17 are short answer type questions carrying 2 marks each.
4. Question numbers 18 to 20 are long answer type questions carrying 3 marks each.
5. Question numbers 21 to 23 are analytical type questions carrying 4 marks each.
6. Internal choices (OR blocks) are provided from question number 6 onwards.
1. All questions are compulsory.
2. Question numbers 1 to 5 are objective type questions carrying 1 mark each (Total 30 marks).
3. Question numbers 6 to 17 are short answer type questions carrying 2 marks each.
4. Question numbers 18 to 20 are long answer type questions carrying 3 marks each.
5. Question numbers 21 to 23 are analytical type questions carrying 4 marks each.
6. Internal choices (OR blocks) are provided from question number 6 onwards.
Section – A (Objective Type Questions – 30 Marks)
Question 1. Choose and write the correct option: Marks: 6 × 1 = 6
- Fe₂O₃ + 2Al → Al₂O₃ + 2Fe
The above reaction is an example of a: - In humans, the kidneys are a part of the system involved in:
- The gap between two neurons is called a:
- The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object?
- The human eye forms the image of an object at its:
- Which of the following are the primary decomposers in our environment?
Question 2. Fill in the blanks: Marks: 6 × 1 = 6
- Reactions in which heat is released along with the formation of products are called ________ reactions.
- The transport of water in plants takes place primarily through the ________ tissue.
- Control and coordination in our body is performed by the nervous system and the ________ system.
- The refractive index of any medium with respect to vacuum is always ________ than 1.
- The twinkling of stars is due to the atmospheric ________ of starlight.
- Only ________ percent of energy is transferred from one trophic level to the next next higher trophic level.
Question 3. Write True or False: Marks: 6 × 1 = 6
- Respiration is an endothermic reaction. ( )
- The chambers on the right side of the human heart carry oxygenated (pure) blood. ( )
- The main thinking part of the human brain is the fore-brain. ( )
- A concave lens is also known as a converging lens. ( )
- The blue color of the sky is due to the scattering of light. ( )
- The ozone layer shields the surface of the earth from harmful ultraviolet (UV) radiation. ( )
Question 4. Match the following columns to make correct pairs: Marks: 6 × 1 = 6
| Column ‘A’ | Column ‘B’ |
|---|---|
| 1. Chlorophyll | (A) Decomposers |
| 2. Insulin Hormone | (B) Dispersion of light |
| 3. Unit of Power of a Lens | (C) Endocrine Gland |
| 4. Formation of a Rainbow | (D) Photosynthesis |
| 5. Thyroid Gland | (E) Diopter |
| 6. Fungi and Bacteria | (F) Pancreas (Diabetes control) |
Question 5. Answer in one word or one sentence: Marks: 6 × 1 = 6
- What coating is applied to iron articles to protect them from rusting?
- Name the tissue responsible for the translocation of food in plants.
- Name the plant hormone that promotes cell division.
- Write down the Mirror Formula.
- What is the defect of vision called in which a person can see nearby objects clearly but cannot see distant objects distinctly?
- What are organisms called that depend on the producers directly or indirectly for their sustenance?
Section – B (Short Answer Type Questions – Questions 6 to 7)
Question 6. Marks: 2
Why should a magnesium ribbon be cleaned before burning in air?
OR
Why do we apply paint on iron articles? Explain with reference to chemical processes.
Section – B (Short Answer Type Questions – Questions 7 to 17)
Question 7. Marks: 2
What is a balanced chemical equation? Why is it necessary to balance a chemical equation?
What is a balanced chemical equation? Why is it necessary to balance a chemical equation?
OR
What is rancidity? Write any two measures to prevent food items from becoming rancid.
Question 8. Marks: 2
Write two main differences between autotrophic nutrition and heterotrophic nutrition.
Write two main differences between autotrophic nutrition and heterotrophic nutrition.
OR
What is the role of acid (HCl) in our stomach? Explain.
Question 9. Marks: 2
Differentiate between an artery and a vein by writing any two main differences.
Differentiate between an artery and a vein by writing any two main differences.
OR
Plants do not have a specialized excretory system. How do they excrete waste products? Write any two methods.
Question 10. Marks: 2
What is a reflex action? Give one suitable example.
What is a reflex action? Give one suitable example.
OR
What are plant hormones (phytohormones)? Name any one plant growth regulatory hormone and write its function.
Question 11. Marks: 2
How is the movement of leaves in a sensitive plant (Touch-me-not) different from the movement of our legs?
How is the movement of leaves in a sensitive plant (Touch-me-not) different from the movement of our legs?
OR
What is a synapse? How is a nerve impulse transmitted across it?
Question 12. Marks: 2
Write the laws of reflection of light.
Write the laws of reflection of light.
OR
Write the laws of refraction of light (including Snell’s law).
Question 13. Marks: 2
The radius of curvature of a spherical mirror is 20 cm. Find its focal length (f).
The radius of curvature of a spherical mirror is 20 cm. Find its focal length (f).
OR
Find the focal length of a lens whose power is -2.0 D. What type of lens is this?
Question 14. Marks: 2
Why does the clear sky appear blue? Explain the phenomenon involved.
Why does the clear sky appear blue? Explain the phenomenon involved.
OR
Why does the Sun appear reddish during sunrise and sunset?
Question 15. Marks: 2
What is the Tyndall effect? Give one real-world example of this phenomenon observed in nature.
What is the Tyndall effect? Give one real-world example of this phenomenon observed in nature.
OR
Which optical phenomenon is responsible for advanced sunrise and delayed sunset? Explain briefly.
Question 16. Marks: 2
What is an ecosystem? Name its two primary components.
What is an ecosystem? Name its two primary components.
OR
What are the main causes of ozone layer depletion? What harm can it cause to our environment?
Question 17. Marks: 2
What is a food chain? Give an example of a simple four-step terrestrial food chain.
What is a food chain? Give an example of a simple four-step terrestrial food chain.
OR
What will happen if we kill/eliminate all the organisms in one trophic level? Explain its impact on the environment.Section – C (Long Answer Type Questions – Questions 18 to 20)
Question 18. Marks: 3
Define combination, decomposition, and displacement reactions by writing one chemical equation for each type.
Define combination, decomposition, and displacement reactions by writing one chemical equation for each type.
OR
Distinguish between exothermic and endothermic reactions with a suitable example for each.
Question 19. Marks: 3
Describe the general structure of the human brain and state the main functions of its three major regions.
Describe the general structure of the human brain and state the main functions of its three major regions.
OR
What are endocrine glands? Name any three endocrine glands in the human body along with the hormones secreted by them.
Question 20. Marks: 3
Explain the process of dispersion of white light through a glass prism and list the order of colors in the spectrum.
Explain the process of dispersion of white light through a glass prism and list the order of colors in the spectrum.
OR
What are myopia and hypermetropia? Explain how these vision defects are corrected using appropriate lenses.Section – D (Analytical Type Questions – Questions 21 to 23)
Question 21. Marks: 4
Describe the human digestive system and explain the significance of the liver and pancreas in the digestion of food.
Describe the human digestive system and explain the significance of the liver and pancreas in the digestion of food.
OR
Explain the mechanism of respiration in human beings and write four key differences between aerobic and anaerobic respiration.
Question 22. Marks: 4
Explain the structure of a nephron and briefly describe the process of urine formation in kidneys.
Explain the structure of a nephron and briefly describe the process of urine formation in kidneys.
OR
Explain the internal structure of the human heart and clarify why double circulation is necessary in birds and mammals.
Question 23. Marks: 4
Describe the position, nature, and size of the image formed by a concave mirror when an object is placed at the following positions:
(i) At infinity
(ii) At the principal focus (F)
(iii) At the center of curvature (C)
(iv) Between the pole (P) and the principal focus (F)
Describe the position, nature, and size of the image formed by a concave mirror when an object is placed at the following positions:
(i) At infinity
(ii) At the principal focus (F)
(iii) At the center of curvature (C)
(iv) Between the pole (P) and the principal focus (F)
OR
Write the lens formula and the formula for magnification. An object is placed at a distance of 10 cm from a convex lens of focal length 15 cm. Calculate the position and nature of the image formed.शैक्षणिक सत्र 2026-27 के लिए हिन्दी माद्यम के छात्रों के सभी प्रकार की शैक्षणिक सामग्री एम् पी बोर्ड स्टडी डाट काम ( https://mpboardstudy.com/) पर उपलब्ध है जबकि अंग्रेजी माध्यम के लिए एम् पी बोर्ड इंग्लिश मीडियम डाट काम ( https://mpboardenglishmedium.com/) देखें . विमर्श पोर्टल डाट इन ( https://vimarshportal.in/) भी एक उपयोगी वेबसाईट है .
व्यावसायिक शिक्षा के लिए वोकेशनल एजुकेशन डाट इन ( https://vocationaleducation.in/)
लेटेस्ट अपडेट के लिए whats app ग्रुप में जुड़ें https://chat.whatsapp.com/KbKnl3RHBAn7ARGJARsQaI
कक्षा 9 से 12 वीं के अन्य प्रश्न पत्र के लिए कृपया वेबसाईट को नोट कर ले व् समय समय पर देखते रहें – https://mpboardenglishmedium.com/
