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Free Content10 MCQs
Have you ever wondered why the sky is blue, or how a tiny seed grows into a big tree? Basic science helps us understand these everyday mysteries all around us. It's like having a secret guidebook to how the world works, from why your phone charges to why clothes dry in the sun. Learning basic science isn't just for textbooks; it helps you make sense of your daily life!
Remembering how litmus paper changes color for acids and bases can be tricky. Here's a simple phrase: "Acid turns Blue to Red, Base turns Red to Blue."
Think of "A for Acid, B for Blue" – if it starts blue and turns red, it's an acid. If it starts red and turns blue, it's a base. The change happens from the original color towards the new one.
The seven colors of the rainbow, in order, can be hard to recall. Use this easy word: VIBGYOR. Each letter stands for a color.
It starts with Violet and ends with Red. This helps you remember the spectrum of light, from shortest wavelength (Violet) to longest (Red).
Heat can move in three ways: Conduction, Convection, and Radiation. To remember them, think of CRC (like a check for your car, but for heat!)
Conduction (छूकर), Convection (तरल पदार्थ में घूमकर), Radiation (किरणों से). Each one works in a different way to spread warmth or cold.
Newton's three laws of motion are very important. Think of them like this:
1st Law (Inertia): A lazy person stays lazy unless someone pushes them. (Object at rest stays at rest).
2nd Law (Force): The harder you push a trolley, the faster it goes. (Force = mass × acceleration).
3rd Law (Action-Reaction): When you push a wall, the wall pushes you back. (Every action has an equal and opposite reaction).
It's easy to get confused about the order in which food travels through your body. Remember it like a journey: Mouth → Food Pipe → Stomach → Small Intestine → Large Intestine → Exit.
Think of it as a river (food) flowing through different cities (organs) to finally reach the ocean (exit). Each city does a special job!
Basic science, also known as everyday science, is simply understanding the natural world around us. It explains things like why a ball falls down or how a plant makes its own food. It's not about complex theories, but about the simple rules that govern our daily lives. Think of it as knowing the 'how-to' guide for everything you see and do!
Basic science is often divided into three main parts, like chapters in a fun storybook:
Understanding basic science helps you in many ways. It makes you curious and helps you solve problems. When you know why something happens, you can predict what might happen next. For competitive exams like SSC and Banking, questions often come from these everyday scientific observations. Knowing these simple concepts can give you a big advantage!
By paying attention to the world around you, you're already doing science! Keep asking 'why' and 'how', and you'll become a science expert without even realizing it.
Law of Conservation of Energy
Energy cannot be created or destroyed, only changed from one form to another.Newton's First Law of Motion (Law of Inertia)
An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.Photosynthesis Equation
6CO₂ + 6H₂O + Light Energy → C₆H₁₂O₆ + 6O₂Density Formula
Density = Mass / Volume| Concept | Everyday Example | Brief Explanation |
|---|---|---|
| Solid | A block of ice | Particles are tightly packed and vibrate in fixed positions, giving a definite shape and volume. |
| Liquid | Water in a glass | Particles are close but can slide past each other, taking the shape of the container but having a definite volume. |
| Gas | Steam from boiling water | Particles are far apart and move freely, taking both the shape and volume of the container. |
| Reflection | Seeing yourself in a mirror | Light bounces off a surface, allowing us to see images. |
| Refraction | A spoon looking bent in a glass of water | Light bends as it passes from one medium (like air) to another (like water). |
Q: Why does a ball thrown upwards always fall back down?
Q: How does a refrigerator keep food cold?
Q: Why does an iron nail rust, but a gold ring does not?
Q: How do plants make their own food?
You put an ice cube in your juice, and you notice it floats instead of sinking. Why does ice behave differently from most other frozen liquids?
On a clear night, you look up and see the stars twinkling. But planets usually shine steadily. What makes the stars appear to twinkle?
Every time you cut an onion, your eyes start to water and sting. Why does cutting an onion make you cry, and what's the science behind it?
You heat a bowl of leftovers in the microwave. The food gets piping hot, but the ceramic bowl stays relatively cool. How does a microwave oven selectively heat your food?
Which of the following processes primarily involves a chemical change?
When you see your reflection in a mirror, what scientific phenomenon is at play?
Which component of blood is responsible for carrying oxygen to different parts of the body?
Why do clothes dry faster on a windy day?
1Which gas do plants absorb from the atmosphere for photosynthesis?
2What is the unit of force?
3Which of these is a good conductor of electricity?
4What causes the sensation of 'echo'?
5Which vitamin is essential for strong bones and teeth?
6The process of converting milk into curd is an example of a:
7Which planet is known as the 'Red Planet'?
8What is the primary function of leaves in a plant?
9Which of these devices converts electrical energy into mechanical energy?
10What is the main component of our bones and teeth?
Remembering how litmus paper changes color for acids and bases can be tricky. Here's a simple phrase: "Acid turns Blue to Red, Base turns Red to Blue."
Think of "A for Acid, B for Blue" – if it starts blue and turns red, it's an acid. If it starts red and turns blue, it's a base. The change happens from the original color towards the new one.
The seven colors of the rainbow, in order, can be hard to recall. Use this easy word: VIBGYOR. Each letter stands for a color.
It starts with Violet and ends with Red. This helps you remember the spectrum of light, from shortest wavelength (Violet) to longest (Red).
Heat can move in three ways: Conduction, Convection, and Radiation. To remember them, think of CRC (like a check for your car, but for heat!)
Conduction (छूकर), Convection (तरल पदार्थ में घूमकर), Radiation (किरणों से). Each one works in a different way to spread warmth or cold.
Newton's three laws of motion are very important. Think of them like this:
1st Law (Inertia): A lazy person stays lazy unless someone pushes them. (Object at rest stays at rest).
2nd Law (Force): The harder you push a trolley, the faster it goes. (Force = mass × acceleration).
3rd Law (Action-Reaction): When you push a wall, the wall pushes you back. (Every action has an equal and opposite reaction).
It's easy to get confused about the order in which food travels through your body. Remember it like a journey: Mouth → Food Pipe → Stomach → Small Intestine → Large Intestine → Exit.
Think of it as a river (food) flowing through different cities (organs) to finally reach the ocean (exit). Each city does a special job!
Energy cannot be created or destroyed, only changed from one form to another.An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.6CO₂ + 6H₂O + Light Energy → C₆H₁₂O₆ + 6O₂+1 more formulas below