CBSE Class 9 Science Atoms and Molecules Worksheet Set 04

Access the latest CBSE Class 9 Science Atoms and Molecules Worksheet Set 04. We have provided free printable Class 9 Science worksheets in PDF format, specifically designed for Chapter 3 Atoms and Molecules. These practice sets are prepared by expert teachers following the 2026-27 syllabus and exam patterns issued by CBSE, NCERT, and KVS.

Chapter 3 Atoms and Molecules Practice Set for Class 9 Science

Use these Class 9 Science chapter-wise worksheets for daily study routines. They feature important questions and answers for Chapter 3 Atoms and Molecules to make test prep simple. Working through these Class 9 Science exercises consistently will sharpen your math and logic skills for the 2026-27 tests.

Class 9 Science Chapter 3 Atoms and Molecules Printable PDF Worksheet

Practice Worksheet
CBSE Class 9 Science
Topic: Atoms and Molecules
 
Very Short Answer

Q1) What is the law of conservation of mass? Write the formula of a polyatomic cation.
Ans: When a physical or chemical change occurs the total mass of the reactants is equal to the total mass of the products formed in the reaction.
NH4+
 
 
Q2) Suraj was given a fine white-colored powder which is either sugar or salt. How would he identify it without tasting?
Ans:  On heating, white coloured powder, it will char if it is sugar. On the other hand, the powder may be dissolved in water and pass an electric current through it. If it conducts,
it is salt.
 
Q3) What is unified atomic mass unit (u)? 
Ans: Unified atomic mass unit is equal to 1/12th the mass of a carbon-12 atom.
 
Q4) How many mole atoms of oxygen (O) are present in 96g of ozone? 
Ans:
CBSE Class 9 Science Atoms and Molecules Worksheet Set D
 
Q5) Name the ions present in NH4NO3
Ans: NH4+ and NO3-
 
 

Click below to download practice worksheet for CBSE Class 9 Science Atoms and Molecules Worksheet Set D


Free study material for Science

Chapter 3 Atoms and Molecules Practice Sheet & Solutions for Class 9 Science

Chapter Practice Questions for Class 9 Science

Utilize the Chapter 3 Atoms and Molecules practice worksheet shared above to strengthen your school test preparation. These solved Q&As align with the official CBSE framework for Class 9 Science. Download the PDF format instantly to practice daily, featuring core exam topics curated by experienced teachers for better results.

Expert NCERT Practice Material for Class 9 Science

Built strictly from the official NCERT book for Class 9 Science, this practice content offers reliable academic support. Following your self-practice, our educators recommend reviewing our detailed NCERT solutions to learn optimal problem-solving approaches for Science. All study aids are completely free to access.

Improve Your Scores with Science MCQ Tests

For top-tier results in Class 9, learners are encouraged to attempt the chapter-wise Science MCQ test. Our platform also offers a wide range of printable assignments for Class 9 Science. Consistent practice builds solid self-assurance and secures higher grades in CBSE assessments.

FAQs

Where can I download the latest PDF for CBSE Class 9 Science Atoms and Molecules Worksheet Set 04?

You can download the teacher-verified PDF for CBSE Class 9 Science Atoms and Molecules Worksheet Set 04 from StudiesToday.com. These practice sheets for Class 9 Science are designed as per the latest CBSE academic session.

Are these Science Class 9 worksheets based on the 2026-27 competency-based pattern?

Yes, our CBSE Class 9 Science Atoms and Molecules Worksheet Set 04 includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 9.

Do you provide solved answers for CBSE Class 9 Science Atoms and Molecules Worksheet Set 04?

Yes, we have provided detailed solutions for CBSE Class 9 Science Atoms and Molecules Worksheet Set 04 to help Class 9 and follow the official CBSE marking scheme.

How does solving CBSE Class 9 Science Atoms and Molecules Worksheet Set 04 help in exam preparation?

Daily practice with these Science worksheets helps in identifying understanding gaps. It also improves question solving speed and ensures that Class 9 students get more marks in CBSE exams.

Is there any charge for the Class 9 Science practice test papers?

All our Class 9 Science practice test papers and worksheets are available for free download in mobile-friendly PDF format. You can access CBSE Class 9 Science Atoms and Molecules Worksheet Set 04 without any registration.