Question 3 :
Which of the following types of movements is seen in human beings.
Question 5 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6fbf59b460d7261e66a.PNG' />
Given above is the picture of a skeleton. What is i ?
Question 6 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6f3f59b460d7261e660.PNG' />
In the given figure, there are two snakes of the same size slithering on sand. Can you identify which of them would move faster?
Question 7 :
Fill in the blank: ____ are hard structures and cannot be bent.
Question 8 :
Indicate true (T) or false (F): The movement and locomotion of all animals is exactly the same.
Question 9 :
Write the type of joint which is used for movement:
A cricket bowler bowls the ball.
Question 11 :
Which body part does the cow use for moving from place to place?
Question 13 :
Which of the following organisms does not have both muscles and skeleton for movement ?
Question 14 :
The types of movements seen in Kangaroo is/are: (i) Flying (ii) Walking (iii) Swimming (iv) Running (v) Creeping (vi) Slithering (vii) Jumping
Question 15 :
Which type of movement would have been possible if we were to have a ball and socket joint between our neck and head.
Question 16 :
Choose the correct answer:
Framework of bones which gives shape to our body is -
Question 19 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6dbf59b460d7261e63e.jpg' />
A person rolls a strip of paper into a cylinder. Then, he makes a small hole in an old rubber or plastic ball and pushes the paper cylinder into it as shown in above figure. Now, he puts the ball in a small bowl. Does the paper cylinder rotate?
Question 21 :
Complete the sentence:
Salt can be separated from its solution (salt dissolved in water), because ______.
Question 22 :
Paneer is made up of milk , can we get milk from paneer ?
Question 24 :
Can we reverse the change of water vapour into water? If yes, suggest the name of the method
Question 25 :
An aeroplane cut out of paper. What will happen to piece of paper ?
Question 26 :
Biogas is made by cow dung , can we get cow dung again ?
Question 27 :
An idli is made by batter. Can this change be reversed?
Question 28 :
A bag of cement lying in the open gets wet due to rain during the night. The next day the sun shines brightly. Do you think the changes, which have occurred in the cement, could be reversed?
Question 30 :
The ripening of mango . Can this change be reversed ?
Question 33 :
A process in which an object becomes bigger in size is called ?
Question 35 :
An iron ring is heated. Which of the following statement about it is incorrect?
Question 36 :
Example for the change which occurs on mixing two substances, but cannot be reversed is:
Question 37 :
A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilised. Can the change in POP be reversed?
Question 39 :
Take some dough and make a ball. Try to roll out a roti. Can this change be reversed ?
Question 41 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc1a9878c526e972caefc7.PNG' />
Would the bulb glow after completing the circuit shown in above figure, if instead of safety pin we use an eraser?
Question 42 :
Fill in the blank: The thin wire that gives off light is called the _______ of the bulb.
Question 43 :
State whether True or False: A bulb can light up even when its filament is broken.
Question 44 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c65cf59b460d7261e5e3.PNG' />
The above figure shows a bulb connected to a cell in two different ways. What will be the direction of the current through the bulb in the case B ?
Question 45 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c701f59b460d7261e671.PNG' />
Why won't the bulb glow in the circuit shown above?
Question 46 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c663f59b460d7261e5ec.PNG' />
In the above figure the bulb will not glow if the ends A and B are connected with
Question 47 :
A torch is not functioning, though contact points in the torch are in working condition. What can be the possible reason for this?
Question 48 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c65df59b460d7261e5e5.PNG' />
The above figure shows a bulb connected to a cell in two different ways. Does the brightness of the glowing bulb depend on the direction of current through it?
Question 49 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6fef59b460d7261e66e.PNG' />
Why won't the bulb glow in the circuit shown above, if instead of safety pin we use an eraser?
Question 50 :
What is a simple device that either breaks the circuit or completes it ?
Question 51 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c669f59b460d7261e5f2.PNG' />
Which of the above arrangement A, B, C and D should not be set up?
Question 53 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c665f59b460d7261e5ee.PNG' />
In the above figure, why will the bulb not glow in the circuit?
Question 54 :
Why should an electrician use rubber gloves while repairing an electric switch at your home?
Question 56 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c664f59b460d7261e5ed.PNG' />
In the above figure, will the bulb glow in the circuit?
Question 58 :
Fill in the blank: Materials which allow electric current to pass through them are called __________ of electricity.
Question 60 :
Fill in the blank : A device that is used to break an electric circuit is called _______.
