CBSE Class 7 Science Sample Paper Set D

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CBSE Class 7 Science Sample Paper Set D. It’s always recommended to practice as many CBSE sample papers as possible before the examinations. The latest sample papers have been designed as per the latest blue prints, syllabus and examination trends. Sample papers should be practiced in examination condition at home or school and also show it to your teachers for checking or compare with the answers provided. Students can download the sample papers in pdf format free and score better marks in examinations. Refer to other links too for latest sample papers.

1 Which type of soil holds more water and why?

2 Write one advantage of reproduction by spores.

3 What is the difference in the size of the image (of the same object) formed by a small and a large plane mirror?

4 Excess of which acid in the stomach causes acidity? What is the remedy for this condition

5 Where are valves found in human body? Write their function.

6 a) When does an electric short circuit occur?

b) Write any two factors on which amount of heat produced in a current carrying wire depends?

7 In soil A, 100 ml of water takes 10 minutes to percolate completely whereas in soil B, 120 ml of water takes 10 minutes to percolate completely. Calculate the percolation rate in both cases. In which of the two samples, percolation rate is higher?

8 You have been provided with three unlabeled bottles -one contains hydrochloric acid, another contains sodium hydroxide base, and the third one is a sugar solution. How will you identify them using the china rose solution?

9 50 ml of water was added drop wise to 50 g of dry soil, kept on filter paper in a funnel. The amount of water collected in the graduated cylinder below was found to be 40 ml. Calculate the percentage of water absorbed by the soil.

10 a) Explain the process of fertilization in flowers with the help of a labeled diagram.

b) Name two organisms that can reproduce by budding.

11 a) Explain how water and minerals are transported in plants.

b) Define translocation.

c) Write any two differences between RBCs and WBCs.

12 a) Why is pulmonary artery an exception to arteries?

b) Explain any two functions of sweat in human body.

c) What kind of patients are put on dialysis? How does it help them?

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