Question

Q1. Paheli observed that the sides of the wardrobe which was made of iron becoming reddish brown in colour.

a. What was the reason for it?

b. Write chemical reaction for this process.

c. What measures will you suggest to avoid this problem?


Q2. Raj fell and hurt his knee and blood started oozing out. After some time the blood stopped flowing out.

a. Which component of blood helped to stop blood from coming out?

b. Why is blood red in color?


Q3. Choose the correct alternative of passage of urine

a. Kidneys----urethra----bladder----ureter

b. Kidneys----ureter---urethra---bladder

c. Kidneys----ureter-----bladder----urethra


Q4. Write the role of stomata in transpiration?


Q5. While conducting an experiment using mirrors, students recorded the following observations. Identify the mirror used in each of the cases:

a. The image formed was erect and diminished in size

b. The image formed was erect and laterally inverted

c. The image formed was inverted and virtual.


Q6. When sunlight passes through a prism it splits into different colors.

a. Is light getting reflected or refracted in such a case?

b. Is a prism an opaque material or is it transparent? Why?


Q7. How do forest help in controlling floods?​

Answer 1

Answer:

Direction (1-15): In these questions some of the sentences have errors and some have none. Find out which part of a sentence has an error and indicate it corresponding to the appropriate letter. If there is no error, indicate corresponding to the last option.

Q1. If you do have a chimney, he says, (A)/just remember to put the fire out (B)/ before you go to the bed. (C)/ No Error (D)

(a) A

(b) B

(c) C

(d) D

Show Answer

S1. Ans.(c)

Sol. Replace ‘go to the bed’ with ‘go to bed’.

‘Go to bed’ is the correct idiomatic expression which means ‘to go to where one’s bed is, get into it, and go to sleep’.