Science Class 4th
1. Ears receive sound signals:
A) True
B) False
2. Teeth are used for:
A) Talking
B) Chewing
C) Tasting
D) All of the above
3. Teeth contain ________.
A) Calcium
B) Fluoride
C) Zinc
D) Iron
4. Milk teeth are ____ in number.
A) 10
B) 12
C) 14
D) 20
5. ______ protects organs from infection and injury:
A) Bones
B) Skin
C) Teeth
D) Eyes
6. The Flesh of Body is made up of:
A) Skin
B) Bones
C) Muscles
D) Nerves
7. Movement is due to:
A) Nerves
B) Muscles
C) Bones
D) Muscles and Bones
8. Stomach is a _______ like structure.
A) Bean
B) Sac
C) Rod
D) Cylindrical
9. _____ are present in chest cavity.
A) Kidneys
B) Brain
C) Lungs
D) Spleen
10. Heart is located in:
A) Centre of Chest Cavity
B) Upper Side of Chest
C) Left Side of Chest
D) Right Side of Chest
11. Which of the following is controlled by the brain:
A) Movement
B) Speech
C) Sleep
D) All of the above
12. If we don’t brush regular we will get:
A) Tooth Ache
B) Cavities
C) Gum Problems
D) All of the above
13. Muscles are attached to:
A) Tendons
B) Ligaments
C) Bones
D) Other Muscles
14. Lungs absorb ______ from the air.
A) Oxygen
B) Carbon Dioxide
C) Nitrogen
D) All of the above
15. _________ pumps blood to different part of body.
A) Lungs
B) Spleen
C) Heart
D) Kidneys
16. Movement is produced by muscles and _________.
A) Tendon
B) Ligament
C) Bone
D) Only Muscles
17. Lungs are important because:
A) Contact and Expand
B) Absorb Oxygen
C) Release Carbon Dioxide
D) Both B and C
18. To make or muscles and bones strong and healthy we should:
A) Eat less Food
B) Exercise
C) Use More Salt
D) Take Soft drinks
19. Which organ is the control centre of the body:
A) Stomach
B) Heart
C) Brain
D) Skin
20. Which of the following protect from infection:
A) Bones
B) Skin
C) Muscles
D) Hair