Read and download the Lighter Or Heavier PDF from the official NCERT Book for Class 8 Science. Updated for the 2026-27 academic session, you can access the complete Science textbook in PDF format for free.
NCERT Class 8 Science Lighter Or Heavier Digital Edition
For Class 8 Science, this chapter in CBSE Book Class 8 Science Activity Lighter or Heavier provides a detailed overview of important concepts. We highly recommend using this text alongside the NCERT Solutions for Class 8 Science to learn the exercise questions provided at the end of the chapter.
Lighter Or Heavier NCERT Book Class Class 8 PDF (2026-27)
MATERIALS- METAL AND NON METALS
Karan is a curious student. One day, he put some iron dust in a beaker containing dilute hydrochloric acid. He noticed fumes coming out of the beaker. He got worried and wondered what had happened? He picked up the beaker to throw away its contents. But, OUCH! It was so hot. His teacher will definitely scold him now for being careless.
What to do:
1. Take dilute hydrochloric acid in the glass bottle.
2. Put some iron filings or zinc dust in the balloon.
3. Fix the balloon on the mouth of the glass bottle so that the iron filings get dropped in the glass bottle. What do you notice? Does the balloon inflate?
4. Remove the balloon carefully and tie its mouth tightly without letting the gas escape.
5. Release the balloon. Does it rise and float away? What does this indicate? Is the gas trapped in the balloon lighter or heavier than air? Which gas could it be?In the above activity you allowed metal iron to react with an acid. What happens when metal carbonates and bicarbonates react with acids? Let us find by doing an activity.
6. Take 2mL of vinegar in a glass bottle.
7. Take a pinch of baking soda in a balloon.
8. Fix this balloon on the mouth of the glass bottle so that baking soda gets dropped in the glass bottle. Do you notice bubble formation? What happens to the balloon? Remove the balloon and tie its mouth tightly without letting the gas escape.
Release the balloon. Does it rise and float away? Does it behave the same way as the first gas filled balloon in the first case? Is this gas heavier or lighter than air? Find out from your science teacher how you can test for these gases?
Please refer to the link below - CBSE Class 8 Science Activity Lighter or Heavier
Free study material for Science
NCERT Book Class 8 Science Lighter Or Heavier
Download the official NCERT Textbook for Class 8 Science Lighter Or Heavier, updated for the latest academic session. These e-books are the main textbook used by major education boards across India. All teachers and subject experts recommend the Lighter Or Heavier NCERT e-textbook because exam papers for Class 8 are strictly based on the syllabus specified in these books. You can download the complete chapter in PDF format from here.
Download Science Class 8 NCERT eBooks in English
We have provided the complete collection of NCERT books in English Medium for all subjects in Class 8. These digital textbooks are very important for students who have English as their medium of studying. Each chapter, including Lighter Or Heavier, contains detailed explanations and a detailed list of questions at the end of the chapter. Simply click the links above to get your free Science textbook PDF and start studying today.
Benefits of using NCERT Class 8 Textbooks
The Class 8 Science Lighter Or Heavier book is designed to provide a strong conceptual understanding. Students should also access NCERT Solutions and revision notes on studiestoday.com to enhance their learning experience.
You can download the latest, teacher-verified PDF for CBSE Book Class 8 Science Activity Lighter or Heavier for free on StudiesToday.com. These digital editions are updated as per 2026-27 session and are optimized for mobile reading.
Yes, our collection of Class 8 Science NCERT books follow the 2026 rationalization guidelines. All deleted chapters have been removed and has latest content for you to study.
Downloading chapter-wise PDFs for Class 8 Science allows for faster access, saves storage space, and makes it easier to focus in 2026 on specific topics during revision.
NCERT books are the main source for NCERT exams. By reading CBSE Book Class 8 Science Activity Lighter or Heavier line-by-line and practicing its questions, students build strong understanding to get full marks in Science.