# CBSE Class 7 Science Sample Paper Set U

CBSE Class 7 Science Sample Paper Set U.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.

Section- A

Q.1. Fill in the blanks:- (1)

(i) 0˚C = __________ ˚F.

(ii) The basic unit of time is __________.

Q.2. Write the two methods which were used in early time to measure time. (1)

Q.3. Answer in one word- (2)

(i) The process involved with the rise of mercury when clinical thermometer is kept under tongue.

(ii) The resting position of the bob of pendulum.

Q.4. Define: (i) Divergent beam of light. (2)

(ii) Time period of a pendulum.

Q.5. Identify the type of motion represented by the following graphs- (2)

Q.6. (i) Define the term “oscillation” for a simple pendulum. (2)

(ii) If a pendulum completes 40 oscillation in 20 seconds. Find its time period.

Q.7. (i) Define non- uniform motion. (3)

(ii) A body covers a distance of 50 km in 15 minutes. Calculate the speed in km/ h.

Q.8. (i) Differentiate between real and virtual images. (3)

(ii) Identify A and B in the following diagram and define them.

Q.9. Give reason - (3)

(i) Why does land breeze occur during night time?

(ii) Why do we wear light coloured clothes in summers and dark coloured clothes in winter?

Q.10. Medical vans used to transport patients to hospital has words “ ” inscripted on it. Name the phenomenon associated and explain. (3)

Q.11. (i) Plot the distance time graph for the following data. (5)

Time (h) 0 2 4 6 8

Distance (km) 0 3 8 9 13

(ii) With the help of graph, identify the type of motion.

(iii)Calculate the speed of car when time was 4h.

Section- B (CHEMISTRY) (26)

Q.14 Tartaric acid is present in __________ (1)

Q.15 Carpet wool is obtained from which breed of sheep. (1)

(i) Nali

(ii) Lohi

(iii) Marwari

(iv) Bakharwal

Q.16 Chemical formula of Sulphuric acid is (1)

(i) HSO4

(ii) H2SO3

(iii) H2SO4

(iv) K2SO4

Q.17 When is „World Water Day‟ celebrated? (1)

(i) 23rd March

(ii) 22nd March

(iii) 22nd May

(iv) 22nd July

Q.18 (i) How does aquifers get recharged? (2)

(ii)Name two water borne diseases.

Q.19 (i) Define shearing. (2)

(ii)Why shearing does not hurt the sheep?

Q.20 (i) Draw a flow chart to show production of silk from silk moth. (2)

(ii)Which microorganism is responsible for causing a fatal blood disease called sorter‟s disease?

Q.21 Name and define two processes that take place in the water cycle. (2)

Q.22 (i) Complete the following equation: (3)

Potassium hydroxide + Sulpheric acid

____________ + ____________ + ____________

(ii) Encircle the odd- one out. Give reasons for your choice.

Milk of magnesia, Sodium bi carbonate solution, Soap solution, Sugar solution.

Q.23 (i) Name two types of silk. (1+ 1+ ½+ ½)

(ii) Why do wool- yielding animals have thick fur?

(iii) What name is given to the hair of sheep?

(iv) Write the scientific name of Mulberry tree.

Q.24 (i) Why ice cubes float on water? (1 +1 +1)

(ii) Name the chemical constituents of water.

(iii)Define water table.

Q.25 Five solutions have been labelled as A, B, C, D and E. They have been tested with four indicators- methyl orange, phenolphthalein, blue litmus paper and red litmus paper. The observations have been recorded in the following table. Think and answer the questions that follow:

(i) Which of the following solutions can be used for neutralization?

(a) A and B

(b) C and B

(c) C and D

(d) D and E

(ii) What would be the colour of turmeric paper indicator in solution C?

(iii) How many acids have been tested?

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