Dear students, here we list 40 important science questions for class 4-5. All these questions will help you in your all exams and boost knowledge. You just read these questions daily after some time you will see that you have learnt all question. All the Best  

 

         


 

1.  Name the gas essential for the breath?

Answer: Oxygen

 

2.  Name the layer which protects our earth from harmful rays?

Answer: Ozone

 

3.  Which Is the nearest planet to the sun?

Answer: Mercury

 

4.  In the list of planets, at what number our earth is?

Answer: Third

 

5.  Name the three states of matter

Answer: solid liquid and gas

 

6.  Each day, how much a queen bee eats to produce eggs?

Answer: 80 times of her weight

 

7.  How many bones are there in the human body?

Answer: 206

 

8.  How many teeth do adults have?

Answer: 32

 

9.  Name the hot middle layer of the earth

Answer: Mantle

 

10.     Name that inner layer of the earth

 Answer: core

 

11.     How much water present on the earth?

Answer: 71%

 

12.    Name the largest planet in the solar system

Answer: Jupiter

 

13.    H2SO4 is the chemical formula of which acid

Answer: sulfuric acid

 

14.    CO is the chemical formula of

Answer: carbon mono oxide

 

15.    What bees use to make honey?

Answer: Nectar

 

16.    Which element is liquid at the room temperature?

   Answer: Mercury

 

17.    What is the atomic symbol of carbon see?

Answer: C

 

18.    100 degrees Celsius equal to ---- Fahrenheit

Answer: 212

 

19.    Name the species which can live on both water and land

Answer: Amphibian

 

20.    The sound has faster speed than light?

Answer: False, Light travels faster than sound

 

21.    Name an insect which does not has red blood

Answer: Cockroach

 

22.    Name the organ that pumps blood in the human body

Answer: Heart

 

23.    How many Valves are in the heart of human body?

Answer: 4

 

24.    What is not found in the shark?

Answer: Bones

 

25.    Name the most important element of the nuclear bomb

Answer: Uranium

 

26.    What is the freezing point of water?

Answer: 0 degrees centigrade

 

27.    Clouds are made up of what?

Answer: Water

 

28.    Leave a handful amount of coal at a very high temperature for a long time. what will you get?

Answer: Diamond

 

29.    How many years ago the Cretaceous have ends?

Answer: Approximately 65 million years

 

30.    Nucleons are made up of neutrons and?

Answer: Protons

 

31.    A Caterpillar grows up and changes into?

Answer: Butterfly

 

32.    How many elements are there in the periodic table?

Answer: 118

 

33.    What is the other name of deuterium?

Answer: Heavy water

 

34.    How many approximate days our moon takes to complete the orbit around the earth?

Answer: 30 days

 

35.    Name the green pigment in plants which is also helpful in absorbing sunlight?

  Answer: Chlorophyll

 

36.    What is the name of the liquid component of the human blood?

Answer: Plasma

 

37.    Which planet is no longer a planet?

Answer: Pluto

 

38.    All planets orbit around which object?

Answer: Sun

 

39.    How many components made up the human blood?

Answer: 4

 

40.    What is the name of the Galaxy which contains our solar system?

Answer: Milky Way