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
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