Questions from Class 8 Science Chapter 3 Health: The Ultimate Treasure come up often in the CBSE Class 8 exam. These class 8 science handwritten notes chapter 3 Health: The Ultimate Treasure follow the 2026-27 NCERT and cover what health really means, healthy lifestyle and clean surroundings, signs and symptoms of illness. This page hosts the notes PDF,.

20+ pages | Key Terms + Quick Recall | Exam-focused notes · Class 8 Science Chapter 3, 2026-27 NCERT
  • CBSE Class 8 Weightage: a scoring chapter in the Science paper, asked in short and long answers.
  • What the notes cover: what health really means, healthy lifestyle and clean surroundings, signs and symptoms of illness, communicable and non-communicable diseases.
  • Best for: quick revision before Class 8 exams and a strong base for Class 9.

You can read the complete class 8 science handwritten notes for Health: The Ultimate Treasure, with key terms, boxed definitions, and quick revision points, in the PDF below.

These handwritten notes are written by subject teachers, mapped to the 2026-27 NCERT, and checked against the last five years of CBSE Class 8 Science papers.

What the Health: The Ultimate Treasure Handwritten Notes Cover

This chapter explains that health means more than just not being sick. It covers physical, mental and social well-being, the habits that keep us healthy, and how diseases spread. It also looks at how vaccines, immunity and medicines help us fight and prevent illness.

  • What health really means
  • Healthy lifestyle and clean surroundings
  • Signs and symptoms of illness
  • Communicable and non-communicable diseases
  • How diseases spread
  • Immunity and the body's defence
  • Vaccines and how they work
  • Antibiotics and antibiotic resistance
Concept: Health is a state of complete physical, mental and social well-being, and we protect it through good habits, clean surroundings, immunity, vaccines and proper treatment.

Health: The Ultimate Treasure Topic-wise Weightage for CBSE Class 8 Science

Some parts of this chapter are asked more often than others. The table below shows which sub-topics to revise first, based on recent CBSE Class 8 question trends.

Sub-topicWeightageCBSE Frequency
Communicable and non-communicable diseasesHighasked often
How diseases spread and preventive stepsHighasked often
Vaccines and immunityHighasked often
Meaning of health and healthy habitsMediumasked sometimes
Antibiotics and antibiotic resistanceMediumasked sometimes
Signs versus symptomsLowasked rarely

Key Terms and Ideas in Health: The Ultimate Treasure

These are the terms and ideas the exam asks about most. Learn each one so you can define it and use it in your answers.

Term / IdeaWhat it means
Healtha state of complete physical, mental and social well-being, not just the absence of disease
Pathogena germ such as a bacterium, virus, fungus or worm that causes disease
Communicable diseasea disease caused by pathogens that can spread from one person to another
Non-communicable diseasea disease like diabetes or asthma that does not spread and is linked to lifestyle
Vectoran insect like a mosquito or housefly that carries and spreads a disease
Immunitythe natural ability of the body to fight diseases
Vaccinea preparation that trains the immune system to fight a germ before it makes us sick
Antibiotica medicine that kills bacteria but does not work against viruses
Antibiotic resistancewhen bacteria survive an antibiotic that once killed them, making infections hard to treat
Remember: Vaccines are preventive, not curative. They protect you before an illness happens but do not treat a disease once you already have it.
Watch Out: Antibiotics work only against bacteria, not against viruses. Taking them wrongly or without need leads to antibiotic resistance.

How Collegedunia's Handwritten Notes Help You Revise Health: The Ultimate Treasure

These notes are made for the night before the exam. They keep the facts short and easy to scan. Collegedunia maps every point to the 2026-27 NCERT.

  • Clear handwriting: each topic is written in neat, easy-to-read handwriting.
  • Boxed key terms: the main terms and definitions are boxed by hand for fast recall.
  • Diagrams and tables: simple hand-drawn tables and charts make ideas clear.
  • Colour-coded headings: new sub-topics stand out, so you find any section in seconds.

Health: The Ultimate Treasure Self-Assessment Quiz

Try these quick questions after you read the notes. Tap each question to check your answer. They cover the points CBSE asks most often.

Which of these is a non-communicable disease?

(a) cholera (b) diabetes (c) chickenpox (d) malaria

Answer: (b) diabetes - it is linked to lifestyle and does not spread from person to person

Malaria is spread by

(a) contaminated water (b) mosquitoes (c) shaking hands (d) coughing

Answer: (b) mosquitoes - the mosquito acts as a vector carrying the pathogen

A vaccine works by

(a) killing bacteria after illness (b) training the immune system before illness (c) curing all diseases (d) replacing food

Answer: (b) training the immune system before illness - it builds acquired immunity

Who discovered the first vaccine, for smallpox?

(a) Alexander Fleming (b) Edward Jenner (c) Robert Hooke (d) Kamal Ranadive

Answer: (b) Edward Jenner - he found that cowpox protected people from smallpox

Antibiotics do NOT work against

(a) bacteria (b) viruses (c) bacterial infections (d) some bacterial toxins

Answer: (b) viruses - antibiotics target bacterial cells, not viruses

How to Use These Handwritten Notes for Class 8 Science Revision

Use these class 8 science handwritten notes in two passes. Read them slowly once for the full chapter. Then, near the exam, read only the boxes and key terms for a fast recall.

  • Read the notes once with the NCERT chapter open beside you.
  • Say each key term and idea in your own words.
  • Practise one long-answer question from a past paper.
  • On the last day, revise only the key terms and the boxes.

Class 8 Science Handwritten Notes for All Chapters

The table below links the class 8 science handwritten notes for every chapter. Use it to jump to any other chapter's notes.

Health: The Ultimate Treasure Class 8 Science Handwritten Notes FAQs

Ques. Where can I download Health: The Ultimate Treasure Class 8 Science Handwritten Notes PDF?

Ans. You can download the Health: The Ultimate Treasure Class 8 Science Handwritten Notes PDF directly from this page. Both the Normal and HD versions are free.

Ques. Are these handwritten notes aligned with the 2026-27 NCERT?

Ans. Yes. These notes follow the current 2026-27 syllabus for Class 8 Science. The difference between communicable and non-communicable diseases

Ques. How many pages is the Class 8 Science Health: The Ultimate Treasure Handwritten Notes PDF?

Ans. The notes run about 20 pages. They cover the full chapter with key terms, hand-drawn boxes, and a short self-assessment quiz.

Ques. What is the main idea of the 8th standard Science chapter Health: The Ultimate Treasure?

Ans. The main idea of this chapter is that health means complete physical, mental and social well-being, not just being free of disease. It explains that diseases are either communicable, spread by pathogens, or non-communicable, linked to lifestyle, and that good habits, immunity, vaccines and correct treatment help us stay healthy.

Ques. Are these Health: The Ultimate Treasure notes enough for the CBSE Class 8 exam?

Ans. Yes, for revision. The Collegedunia handwritten notes cover every key point and exam term. Read them with the NCERT chapter and practise past questions.