CBSE Class 9 Science Worksheet Set 19 Solved

Class 9 Science Practice Set: All Chapters

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

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PHYSICS
 
1. What type of energy transformation take place in electric motor? 
 
2. If an electric iron of 1200 W is used for 30 minutes every day. Find electric energy consumed in 30 days in kilowatt hour.
 
3. Can any object have momentum even if its mechanical energy is zero? Explain. 
 
4. a) When do we say that work is done?
 
b) When will be the work done is negative?
 
CHEMISTRY
 
5. State law of constant proportion 
 
6. Give an example of following molecules of elements:
 
(i) diatomic (ii) triatomic (iii) tetra atomic (iv) polyatomic
 
7. Calculate the formula unit mass of NaCO3 and CaCl2 (At. Mass of Na=23u, C=12u, O=16u, Ca=40u, Cl=35.5u)
 
8. Write the formulae and names of compounds formed by combination of:
 
(i) Fe3+ and SO4 2- ( ii) NH4 + and CO3 2-
 
BIOLOGY
 
9. Name the phylum of animals with pseudocoelome. Give an example for such animals. 
 
10. Explain or define the following terms in a sentence:
 
a) Bilateral symmetry b) Open circulatory system
 
11. Name the subgroup of the kingdom Plantae which is called amphibians of the plant kingdom. Write two characteristic features of this subgroup.
 
12. Distinguish between Angiosperms and Gymnosperms. Give any two distinguishing features on each.
 
VALUE POINTS 
 
PHYSICS
 
1. Electrical energy into mechanical energy. 
 
2. P =1200 W = 1.2 KW ; t = 15 hrs
 
E = P x t = 1.2 x 15 = 18 KWh.
 
3. When mechanical energy = o. KE = PE = 0
 
Since v = 0 : momentum = 0
 
4. a) Work is done by a force on an object if a force acts on the object and the object is displaced from its original position.
 
b) When the force and displacement are in the opposite direction.
 
CHEMISTRY
 
5. Define law 
 
6. (i)O2  (ii) O3  (iii) P4  (iv)S8 
 
7. (a)83u   (ii) 111u 
 
8. Fe2(SO4)3
 
(NH4)2CO3
 
BIOLOGY
 
9. Nematode (1/2) . Example (1/2) 
 
10. Right and left side of the body has same design(1/2)
 
Blood does not flow through blood vessels (1/2)
 
11. Bryophyta(1)
 
Plant body differentiated into stem like leaf like root like structures No vascular tissue 
 
12. Gymnosperms – seeds are naked , woody ,perennial, ever green Angiosperms – Seeds are enclosed , flowering plant , seeds has cotyledon ,any two each (1/2) x 4



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All Chapters Practice Sheet and Solutions for Class 9 Science

Chapter Practice Questions for Class 9 Science

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.

Expert Practice Material for Class 9 Science

Each worksheet is structured around standard CBSE textbooks, allowing students to check their working steps and correct mistakes early in their revision.

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FAQs

Where can I download the latest PDF for CBSE Class 9 Science Worksheet Set 19 Solved?

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

Yes, our CBSE Class 9 Science Worksheet Set 19 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 19 Solved?

Yes, we have provided detailed solutions for CBSE Class 9 Science Worksheet Set 19 Solved to help Class 9 and follow the official CBSE marking scheme.

How does solving CBSE Class 9 Science Worksheet Set 19 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.

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