CBSE Class 9 Science Worksheet Set 18 Solved

Practice Worksheets for Class 9 Science: All Chapters

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

Practice All Chapters Worksheets for Class 9 Science

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

PHYSICS
 
1. What type of energy transformation takes place in photosynthesis? 
 
2. How do you differentiate kilowatt from kilowatt hour? 
 
3. 300 J of work is done in sliding a 2Kg block up in an inclined plane of height 10m. What is the work done against force of friction? Take g = 10m/s2
 
4. a) What is meant by gravitational potential energy?
 
b) At which point in the swing of an ideal simple pendulum (ignoring force of friction) is the gravitational potential energy is maximum?
 
CHEMISTRY
 
5. What are polyatomic ions? Give one example 
 
6. (a)Show the formation of chemical formulae of a compound using ammonium ion and sulphate ion.
 
(b)Calculate the ratio by mass of atoms present in a molecule of carbon dioxides (Given: C=12, O=16)
 
7. How would you differentiate between a molecule of element and molecule of compound? Write one example of each type.
 
8. In a reaction 4.6 gm of barium chloride reacted with 3.4 gm of sodium sulphate. The products were 2.8gm of sodium chloride and 5.2gm of barium sulphate. The reaction takes place as follows:
Barium chloride + Sodium sulphate----------> Sodium chloride + Barium sulphate Show that the above reaction is in agreement with law of conservation of mass. State the law.
 
BIOLOGY
 
9. How do gymnosperms and angiosperms differ from each other with reference to the nature of seeds?
 
10. Explain or define the following terms in a sentence
a) Cotyledon
b) Notochord
 
11. Tape worm is triploblastic. What does it mean? How is hydra different from tape worm in this aspect?
 
12. What is the scientific name of human? Which class of vertebrate does he belong? Write two unique characteristics of this group.


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Free study material for Science

Practice Worksheet and Study Resources for Class 9 Science All Chapters

CBSE Practice Material: Class 9 Science All Chapters

Explore reliable practice questions for All Chapters tailored for Class 9 Science learners. Use these structured worksheets to evaluate preparedness and strengthen problem-solving skills.

NCERT-Aligned Questions and Solutions

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

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FAQs

Where can I download the latest PDF for CBSE Class 9 Science Worksheet Set 18 Solved?

You can download the teacher-verified PDF for CBSE Class 9 Science Worksheet Set 18 Solved 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 Worksheet Set 18 Solved 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 Worksheet Set 18 Solved?

Yes, we have provided detailed solutions for CBSE Class 9 Science Worksheet Set 18 Solved to help Class 9 and follow the official CBSE marking scheme.

How does solving CBSE Class 9 Science Worksheet Set 18 Solved 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 Worksheet Set 18 Solved without any registration.