EASY
4th CBSE
IMPORTANT
Earn 100

Animal 'X' has the following characteristic features:
- Long eyelashes and narrow nostrils
- Wide padded feet
- Thick rubbery lips
- Thick leathery patches on the knee
Which of these animals is 'X'?

100% studentsanswered this correctly
Important Questions on National Science Olympiad (NSO) Questions
EASY
4th CBSE
IMPORTANT
Achin wanted to dig for earthworms in the garden. One hot afternoon, he got a small spade and dug deep into the ground before he found one earthworm. That night it rained heavily. Achin tried to look for earthworms again the next afternoon and this time he found more without having to dig very deep. This shows that earthworms prefer what kind of conditions in its habitat?
1. Dry conditions
2. Cool conditions
3. Moist conditions
4. Warm conditions

EASY
4th CBSE
IMPORTANT
Which of these animals is described in the given box?
- It lays eggs
- It possesses lungs
- It has scaly skin

EASY
4th CBSE
IMPORTANT
Which of the following statements does NOT hold true about the first aid given to an injured person?

EASY
4th CBSE
IMPORTANT
Ajay filled a bottle up to the rim with water and placed it in the freezer. What he saw after a few hours is shown in the figure given here. What does it show?

EASY
4th CBSE
IMPORTANT
Four boys rolled oil drums of the same weight and size up the ramps of different heights. Which amongst them required the greatest effort?

MEDIUM
4th CBSE
IMPORTANT
Ritesh wants to make a list of actions that show that friction produces heat. Which of the following actions can he include in his list?
(i) Rubbing hands together.
(ii) Scratching a match stick against the matchbox.
(iii) Sawing wood.
(iv) Drilling a hole into a metal sheet.
(v) Rubbing off some pencil marks with an eraser.

MEDIUM
4th CBSE
IMPORTANT
Three uniform planks, P, Q and R are balanced on pivots. Two equal forces, each of value F, act on each plank but in different manners as shown in the figure.
Which of the following options is correct regarding this?

MEDIUM
4th CBSE
IMPORTANT
The girl 'a' is putting more efforts to pull the sack bag as compared to the girl 'b'. Girl 'a' has to work against a force which also _____.

