CBSE Class 9 Science Atoms and Molecules Worksheet Set 05

Official Class 9 Science Worksheets: Chapter 03 Atoms and Molecules

Review targeted practice sets for Class 9 Science Chapter 03 Atoms and Molecules. Built according to official educational guidelines for the 2026-27 academic year, these downloadable worksheets support daily revision and core concept reinforcement.

Chapter-wise Practice Material: Chapter 03 Atoms and Molecules

Access the complete worksheet PDF for Chapter 03 Atoms and Molecules below. Regular practice with these targeted questions builds familiarity with standard exam patterns and helps secure higher marks in final Science evaluations.

Practice Worksheet
CBSE Class 9 Science
Topic: Atoms and Molecules

 

Very Short Answer

Q1) Define molar mass of an atom. 
Ans: The mass in g of one mole of an atom is called its molar mass.


Q2) Mention the atomicity and symbols of the following elements. argon and hydrogen.
Ans: argon atomicity is 1 and symbol is Ar
hydrogen is 2 and symbol is H.
 
Q3) Calculate the number of moles present in 34 g of ammonia. 
Ans: 17 g of NH3 is equal to 1 mole
        34 g of NH3 is equal to
        34
        ¯¯17
           =2

Q4) Write the symbol of anions present in the following formulae and also write their names.
KNO3
Ans: In KNO3 the anion present is NO3- and its name is nitrate.
 
Q5) Define a tri atomic molecule.
Ans: A molecule consisting of three atoms of the same element is called a tri atomic molecule.
 
 
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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

Built using the official NCERT book for Class 9 Science, these practice materials provide reliable academic guidance. Pair your practice with our recommended NCERT solutions to master optimal problem-solving approaches.

Additional Study Resources for Class 9 Science

Follow up your worksheet practice by attempting the interactive online Science MCQ test for this chapter to evaluate your execution speed. All platform resources are free to access.

FAQs

Where can I download the latest PDF for CBSE Class 9 Science Atoms and Molecules Worksheet Set 05?

You can download the teacher-verified PDF for CBSE Class 9 Science Atoms and Molecules Worksheet Set 05 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 05 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.

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Yes, we have provided detailed solutions for CBSE Class 9 Science Atoms and Molecules Worksheet Set 05 to help Class 9 and follow the official CBSE marking scheme.

How does solving CBSE Class 9 Science Atoms and Molecules Worksheet Set 05 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.

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