Top Scientific Reasons for SSC Science 1 2026: Logic-Based Questions Solved
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Cracking the Maharashtra State Board exam requires more than just memorization; it demands a logical understanding of how the universe works. In the Science 1 Scientific Reasons SSC section, students often lose marks not because they don't know the answer, but because they miss the "Keywords" that examiners specifically look for in 2026.
As per the latest 2026 paper pattern, Question 2 (A) is dedicated to scientific reasons, where you must solve any two out of three questions for a total of 4 marks. This section is a goldmine for those aiming for a 40/40 score. Below, we have curated the top 30 logic-based questions from Physics and Chemistry, complete with the "Keyword Hack" to ensure you get full credit.
The "Keyword Hack" for 2026 Board Exams
Before diving into the questions, remember the 2026 evaluation rule: One point = One mark. Most scientific reasons require two solid points. Use technical terms like valence electrons, refractive index, or anomalous expansion to catch the moderator's eye.
Top Scientific Reasons for Science 1 Scientific Reasons SSC
Physics: Gravitation to Space Missions
Atomic radius goes on decreasing while going from left to right in a period.
Reason: As we move left to right, the atomic number increases, adding protons to the nucleus. This increases the effective nuclear charge, pulling the electrons closer and reducing the size.
Metallic character decreases across a period.
Reason: Increasing nuclear charge makes it harder for atoms to lose valence electrons.
Tungsten metal is used to make a solenoid-type coil in an electric bulb.
Reason: Tungsten has an extremely high melting point (approx. 3422°C), allowing it to glow without melting when current passes through.
A fuse wire is made of a material with a low melting point.
Reason: To protect circuits, the fuse must melt and break the circuit if the current exceeds a safe limit, preventing fires.
Stars twinkle, but planets do not.
Reason: Stars are point sources of light at immense distances; atmospheric refraction causes their apparent position to fluctuate. Planets are closer "extended sources," so the average change in light intensity is zero.
The sky appears blue during the day.
Reason: Due to the scattering of light by fine particles in the atmosphere; shorter blue wavelengths scatter more than longer red ones.
Geostationary satellites appear stationary from Earth.
Reason: Their period of revolution matches the Earth's rotation period (24 hours), and they orbit in the equatorial plane.
Spacecraft require a high escape velocity to leave Earth.
Reason: To overcome the Earth's gravitational pull, the kinetic energy must exceed the potential energy at the surface.
The value of 'g' is zero at the center of the Earth.
Reason: At the center, the mass of the Earth pulling from all directions cancels out, resulting in no net gravitational force.
Water droplets are formed on the outer surface of a cold water bottle.
Reason: Water vapor in the air comes in contact with the cold surface, loses energy, and undergoes condensation.
Chemistry: Reactions, Metallurgy & Carbon Compounds
Sodium is always kept under kerosene.
Reason: Sodium is highly reactive; it reacts vigorously with oxygen and moisture in the air, leading to accidental fires.
The color of copper sulfate solution changes when an iron nail is dipped in it.
Reason: This is a displacement reaction. Iron is more reactive than copper and replaces it, forming green ferrous sulfate.
Edible oil is pressurized with Hydrogen in the presence of a Nickel catalyst.
Reason: To convert unsaturated fats (liquid) into saturated fats (solid) via hydrogenation.
Anodization is used to protect aluminum vessels.
Reason: It creates a thick, protective layer of aluminum oxide that prevents further corrosion.
Ionic compounds have high melting points.
Reason: Strong electrostatic forces of attraction exist between oppositely charged ions, requiring significant energy to break.
Elements in the same group have similar chemical properties.
Reason: They possess the same number of valence electrons, which determines their chemical reactivity.
Grinding a solid reactant into powder increases the reaction rate.
Reason: It increases the total surface area available for the reaction.
A lemon or tamarind is used to clean tarnished copper vessels.
Reason: The acid in them reacts with the basic copper carbonate (green layer), dissolving it and restoring the shine.
Carbon can form a vast number of compounds.
Reason: Due to its unique properties of catenation (linking with other carbon atoms) and tetravalency.
Pine oil is used in the froth floatation process.
Reason: It specifically wets the sulfide ore particles, causing them to rise with the foam, while the gangue settles down.
Important Logic-Based Questions Solved (2026 Expectations)
The 2026 exam pattern emphasizes "Competency-Based Questions." Instead of direct textbook lines, you might see "Why does a pencil look bent in water?" The answer remains Refraction of Light, but the application is key.
The velocity of light is different in different media.
Convex lenses are used in simple microscopes.
A rainbow is a combined effect of dispersion, refraction, and internal reflection.
In cold regions, aquatic plants survive even when the surface of the lake freezes. (Key: Anomalous expansion of water).
The sun appears reddish at sunrise and sunset.
Copper coins lose their shine over time.
Pure gold is not used for making jewelry. (Key: It is too soft; alloyed with Cu or Ag for hardness).
Vegetable ghee is formed from vegetable oil.
Ethane is a saturated hydrocarbon, while Ethene is unsaturated.
Multistage rockets are used to launch satellites. (Key: To reduce the weight of the vehicle progressively).
FAQs: Science 1 Scientific Reasons SSC
Q1: How many scientific reasons should I write for 2 marks?
In the 2026 board exam, you should write at least two distinct, numbered points containing relevant keywords for 2 marks.
Q2: Is the focus keyword "Science 1 Scientific Reasons SSC" important for the 2026 paper?
Yes, these are the logic-based questions that cover nearly 10% of your theory paper marks. Master them to ensure a high aggregate.
Q3: Can I draw diagrams for scientific reasons?
While not mandatory, a small diagram (like refraction or a circuit) can help illustrate your point and impress the examiner.
Conclusion
Securing a top grade in the 2026 Science 1 exam is all about precision. By mastering these top 30 reasons and using the "Keyword Hack," you are well on your way to academic success. Focus on the why behind every concept, and the marks will follow.
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