“General Science” is the highest scoring as well as the most challenging section for all competitive exams. In this section, you will find important notes on three main subjects of General Science: Physics, Chemistry, Biology, etc.
You can Browse the Subject- wise General Science Notes here:
Whether you’re preparing for SSC, RRB NTPC, UPSC, or any state-level exam, understanding basic biology topics like mucus can give you an extra edge. Though it may sound a bit “icky,” mucus plays a very important role in keeping our bodies safe and healthy. Let’s break this topic into simple parts for better understanding and … Read more
If you are preparing for SSC, RRB NTPC, UPSC, or State PSC exams, you must understand some basic science topics — and “Allotropes of Oxygen” is one of them. But don’t worry! We’ll break it down into simple parts. Let’s dive in! 🧠📘 What are Allotropes? ◾ Allotropes are different forms of the same element.🔹 … Read more
“Sleep is the golden chain that binds health and our bodies together.” — Thomas Dekker Melatonin is often called the “Sleep Hormone”, but its role in our body is much more than just helping us sleep. This post explains everything you need to know about melatonin in a simple way, perfect for your exam preparation. … Read more
Zinc is a metal that looks bluish-white in color. It is an important chemical element with the symbol Zn and atomic number 30. Zinc is not found in a pure form in nature. It is mostly found in minerals like sphalerite (zinc sulfide). 🔍 Just like iron, copper, and aluminium, zinc is also a useful … Read more
Are you confused between solutions, suspensions, and colloids? Don’t worry! Today, we’ll make the Colloidal Solution crystal clear and easy to understand—even if you’re just starting your preparation. Let’s get started! 💪 What is a Colloidal Solution? A colloidal solution is a mixture in which tiny particles of one substance are spread evenly throughout another … Read more
Understanding biology doesn’t have to be tough—especially when it comes to understanding how things move inside a cell. Just like how roads and railways help transport goods across cities, the Endoplasmic Reticulum (ER) helps transport important materials inside the cell. That’s why it is often called the “Transport System” of the cell. This article will … Read more
The human skeletal system forms the framework of our body, offering support, protection, and enabling movement. Understanding its divisions is essential for students and aspirants preparing for UPSC, SSC, RRB NTPC, State PSCs, and other competitive exams, especially from Class 6 to 12 standard. Questions from this topic frequently appear in the General Science, Biology, … Read more
Thyroid Stimulating Hormone (TSH) is a crucial pituitary hormone that plays a key role in regulating metabolism, growth, and development through its effect on the thyroid gland. Questions from this topic frequently appear in UPSC, SSC, RRB NTPC, State PSCs, and other government exams, making it an important chapter in General Science and Biology. If … Read more
In competitive exams like UPSC, SSC, RRB NTPC, and State PSCs, questions on cell organelles are quite common. One frequently asked topic is: “Why are lysosomes called the ‘suicidal bag’ of the cell?“ Understanding this not only helps in biology questions but also enhances clarity in related topics like cell structure, metabolism, and human physiology. … Read more
The human female reproductive system is a recurring topic in NCERT Science and features prominently in competitive exams like UPSC, SSC, RRB NTPC, State PSCs, and even class 10th–12th board exams. One frequently asked question is: “How many eggs are released by a human ovary each month?“ Knowing the exact answer, along with the science … Read more
Bone marrow plays a crucial role in human physiology and is frequently asked about in UPSC, SSC, RRB NTPC, and State PSC exams. Understanding why it is called the “Factory of Blood Cells” helps students answer biology questions related to the circulatory system, immunity, and human anatomy. What is Bone Marrow? ✅ Definition:Bone marrow is … Read more
Valence electrons are the building blocks of chemical bonding and reactivity—a core concept in chemistry that appears frequently in NCERT textbooks (Class 9–12) and competitive exams like UPSC, SSC, RRB NTPC, and State PSCs. Understanding valence electrons helps explain: This makes it a must-know topic for all science learners and exam aspirants. What are Valence … Read more
A lever is a simple machine that helps us do work more easily by multiplying force. It plays a crucial role in everyday tools like scissors, pliers, seesaws, and even our body movements. Understanding levers is essential for students from Class 6–12, as it is frequently covered in NCERT Science, Physics basics, and competitive exams … Read more
If you’re preparing for SSC, RRB NTPC, UPSC, or state-level exams, you must have come across this question: “Why is the ribosome called the protein factory?” In this post, we’ll break it down in simple words, just like how a 6th-grade student would understand — yet with enough depth to help you in competitive exams. … Read more
◾Sebaceous glands are small, oil-producing exocrine glands present in the skin. ◾ They are usually attached to hair follicles and secrete sebum, an oily substance. 🔹 Key Term: Sebum – An oily secretion that lubricates skin and hair. Functions ◾Lubrication: Keeps skin and hair soft and prevents dryness. ◾Waterproofing: Forms a protective barrier to reduce … Read more
◾ Exocrine glands are glands that release their secretions onto a body surface (like skin) or into a body cavity through ducts. ◾These secretions include enzymes, sweat, saliva, mucus, and other substances. 🧩 Memory Tip:Exo = Exit ➝ Secretion exits through ducts. Functions of Exocrine Glands ◾Digestion: Enzymes secreted help break down food (e.g., salivary, … Read more
The liver is one of the most important organs in our body. It is big, reddish-brown, and sits on the right side of our belly. The liver helps clean our blood, store energy, and digest food. In this blog, we will learn about the liver’s parts (anatomy), how it works (functions), and common liver diseases. … Read more
The human arm skeleton is a very important topic in General Science and Biology for exams like SSC, Banking, RRB NTPC, UPSC, and many state-level exams. Our arm helps us do many daily activities like writing, lifting, and throwing. But have you ever wondered how it works? It is all because of the strong bones … Read more
The lower limb, or the leg, is made up of strong bones that help us stand, walk, run, and jump. In this blog post, we will learn about the major bones of the lower limb, based on the NCERT syllabus. Knowing these bones is very important for competitive exams like SSC, Banking, RRB NTPC, UPSC, … Read more
The human vertebral column, also called the backbone or spine, is a very important part of our body. It helps us stand straight, bend, and move easily. Without it, our body would be floppy like a jellyfish! In this blog post, we will explain the human vertebral column in a very simple way. This topic … Read more
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