CBSE Class 7 Science Sample Paper Set 25

CBSE Class 7 Science Sample Paper Set Y.Sample Papers are the very important for every student. The sample papers should be practiced to gain extra marks in examinations. The sample papers have been prepared based on summative assessment1 and summative assessment 2 pattern. The sample papers have been prepared based on pattern of last year examinations and as per latest changes in the syllabus. Students, teachers and parents can download all CBSE educational material and very well prepared worksheets from this website.  All CBSE educational material is developed by our panel of teachers, have also been submitted by CBSE teachers and students. 

PHYSICS

1 What happens when a glass rod is rubbed on a woolen cloth? 1

2 What do you mean by Reflection of light? 1

3 Define resistance and write its S.I. unit 2

4 Write any two properties of an electric charge. 2

5 What are the laws of Reflection? 2

6 What are the three methods of charging? Explain each of them. 3

7 With the help of diagram, Show that the image formed by a plain mirror is erect and virtual.3

8 What are the effects of electric current? Explain each of them. 3

9 Write the three rules for the formation of images by a concave mirror. 3

10 What is a Nichrome? Write it’s any two special properties. 3

11 What is a lightning conductor? how does it protect the structure/building.(Explain with the help of a diagram)5

12 What is an electric fuse? What type of material must be used for making an electric fuse? Explain with an activity.5

CHEMISTRY

1 Which soil is considered to be the best soil for growing most of the crops?1

2 Explain any two factors by which get polluted. 1+1

3 How does chemical weathering take place? 2

4 How does woolen clothes keep us warm in winter 2

5 (a) Define scouring.

(b) Name two countries in which silk is produced in large scale.

(c) Write the different steps involved in making wool from fleece. 1+1+1=3

                                                   OR

Describe various stages in the life cycle of a silk moth and draw the life cycle.

6 Define soil profile. Draws a neat and well labeled diagram showing soil profile 5

                                                   OR

What is soil erosion? How can it be prevented? 

MCQ

1. Coconut trees grows well in coastal regions due to presence of 1

(a) Clayey soil (c) Loamy soil

(b) Sandy soil (d) Both (b) & (C)

2. Process of obtaining silk from silk worm is called

(a) Apiculture (c) Sericulture 1

(b) Agriculture (d) Horticulture

BIOLOGY:

1 Name any one seed that can be dispersed by wind. 1

2 List down the names of any four countries that lie in the frigid zone 1

3 a.What is meant by structural adaptation? 1+1

b. Which type of forest is generally found near the Equator.

4 a. Write down the names of any two plants that can be

propagated by roots.

b. Define vegetative propagation.

5 a) Define Sexual reproduction.

b) Explain the type of reproduction seen in a pond scum.

OR

a) Define reproduction.

b) Draw a well labeled diagram of sexual part of a male & female flower.

6 a. Differentiate between pollination and fertilization giving 2 points. 2+1+1

b. Name the tuber that has an ‘eye’.

c. Give two examples of a corm.

7 a) List down any six factors that affect the climate of a particular region.

b) Explain the adaptations shown by polar bear .

8 Discuss about any five types of tree found in India along with their economic importance.

SECTION-B

9 Yeast reproduce asexually by

a) Fragmention c) budding

b) Sexual reproduction d) spore formation

10 Sunderbans are found in which of the following state

a) W.Bengal c) M.P

b) U.P d) H.P

11 Reproduction by leaves is shown by which of the following plant.

a) Keora c) sunflower

b) Sunflower d) Bryophyllum

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