CBSE Class 9 Science Atoms and Molecules Worksheet Set 04

Practice Worksheets for Class 9 Science: Chapter 03 Atoms and Molecules

Explore reliable practice materials for Chapter 03 Atoms and Molecules tailored for Class 9 learners. Utilizing these Science worksheets ensures thorough preparation and strengthens problem-solving speed for upcoming school assessments.

Practice Chapter 03 Atoms and Molecules Worksheets for Class 9 Science

View or download the dedicated Chapter 03 Atoms and Molecules practice resource below. Engaging with these objective and subjective questions daily ensures continuous academic progress and mastery of the 2026-27 curriculum.

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 03 Atoms and Molecules Practice Sheet and Solutions for Class 9 Science

Download Practice Sheet: Chapter 03 Atoms and Molecules (Class 9 Science)

Review targeted practice exercises for Class 9 Science Chapter 03 Atoms and Molecules. Curated to match official CBSE guidelines, these downloadable PDF sheets support daily revision and core concept reinforcement.

Concept Clarification for Chapter 03 Atoms and Molecules

Cross-reference your completed exercises with comprehensive NCERT solutions for Class 9 Science to ensure absolute clarity across all sub-topics in this chapter.

Additional Study Resources for Class 9 Science

Wrap up your chapter revision by testing your knowledge against standard question formats. Everything on our platform is provided free of charge.

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.