100+ Science Trivia Questions for Kids

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Science is always interesting for the kids. It has mysteries, facts, and interesting information. It includes Biology, Chemistry, Physics, Astrology, and a lot of other branches.
Every branch of science is full of knowledge and interest. And each of us is directly linked to different facts of Science.
In order to test your child’s knowledge in Science, I have come up with more than 100 Science Trivia questions for the kids. Most of them are included in their textbooks and some need a little research.
I hope you and your kid will enjoy it!

100 Plus Science Trivia Questions and Answers for the Kids

Name the gas essential for us to breathe?

Oxygen

Name the layer which protects our earth from harmful rays?

Ozone

What is the nearest planet to the Sun?

Mercury

In the list of planets, at what number our Earth is?

Third

Name the three states of matter.

Solis, Liquid, Gas

Each day, how much a Queen bee eats to produce eggs?

80 times of her weight

How many bones are there in a human body?

206

How many teeth an adult human has?

32

Name the middle layer of planet earth?

Mantle

Name the inner layer of the planet earth?

Core

How much is percent water present on the earth?

97 percent

Name the largest planet in the solar system.

Jupiter

H2SO4 is the chemical formula of which acid?

Sulfuric acid

Fill in the blank. CO is the chemical formula of Carbon _____oxide.

(Mono)

What bees use to make honey?

Nectar

Which element is liquid at the room temperature?

Mercury

What is the atomic symbol of carbon?

C

Fill in the blank.100 degree Celsius equal to _____ Fahrenheit.

( 212)

Name the species which can live on both water and land?

Amphibians

True or false. The sound has faster speed than light.

False, Light travels faster than sound

Name an insect which Does Not has red blood?

Cockroach

Name the organ that pumps blood in the human body.

Heart

How many valves are in the heart of human body?

4

What is not found in the Shark?

Bones

Name the most important element of the nuclear bomb?

Uranium

What is the freezing point of water?

0-degree Centigrade

Clouds are made up of what?

Water

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

A diamond

How many years ago the Cretaceous period have ended?

Approximately 65 million years

Nucleons are made up of neutrons and?

Protons

A Caterpillar grow up and changes into?

A butterfly

How many elements are there in the periodic table?

118

What is the other name Deuterium?

Heavy water

How many approximate days our moon takes to complete the orbit around the Earth?

30 days

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

Chlorophyll

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

Plasma

Which place in no longer a planet?

Pluto

All planets orbits around which object?

The Sun

How many components made up the human blood?

4

What is the name of the galaxy which contains our solar system?

Milky Way

Which planet of our solar system has 53 moons?

Saturn

What is the shape of the full moon?

Circle

Animal without backbones are known as?

Invertebrates

Tell the chemical formula of water?

H2O

Name the person who studies the plants?

Botanist

Name the person who studies animals?

Zoologists

Which two animals can see behind them without moving their head?

Parrot and rabbit

Name the most outer layer of our Earth?

The Crust

Which invisible line dives our Earth into two halves?

Equator

How many bones are in the axial part of skeleton?

80 bones

Two spoons of sugar dissolved in a glass of water makes?

A solution

What do we called the lower part of our Earth?

Southern Hemisphere

Which pigment determines the color of the human skin?

Melanin

Name the person who discovered Human cell?

Robert Hooke

REM stands for?

Rapid Eye movement

Where is the smallest bone present in the human body?

Middle ear

Which side of brain controls the left side of the human body?

Right side

Name the hot liquid rock surface under the Earth.

Magma

Name the volcanic rock which can float in water.

Pumice

Which planet is nicknamed as the “Red Planet”?

Mars

Which is the longest river on the Earth?

Nile River

A human skeleton is divided into parts. One is the Axial skeleton and the other is?

Appendicular skeleton part

Which part of the human body forms the skeletal system but is not a bone?

Teeth

Name the softest mineral found on the Earth?

Talc

Our Milky Way has the shape of which food snack?

Doughnut

At what time the pill bugs are most active?

At night

Name the mineral necessary for our bones?

Calcium

At the time of birth, a human skeleton consists of how many bones?

300

Name the seventh planet from the sun.

Uranus

What is the percentage of Nitrogen in the air?

78.09 percent

Quicksilver is the other name of which element?

Mercury

The animals which eat meat are known as?

Carnivores

Which planet is known as the “Gas giant planet”?

Jupiter

The animals which feed on plants are?

Herbivores

How many times does hummingbird beat its wings in a second?

80 times

Guppies are omnivores or carnivores?

Omnivores

Name the star closest to the Earth.

Sun

Name the brightest planet in the night sky?

Venus

Europa orbits what planet?

Jupiter

How long Earth takes to rotate once?

24 hours

Moon borrows light from which star?

The Sun

Who invented bulb?

Thomas Edison

Fe is the symbol of which element?

Iron

Dmitri Mendeleev invented what?

Periodic table

NaOH is the chemical formula of which known substance?

Sodium Hydroxide

What is the name of the particular environment in which an organism lives?

Habitat

What is female mosquito called and causes Malaria?

Anopheles

Name the tallest animal of the world.

Giraffe

The animals who feed their babies on milk are known as?

Mammals

Group of lion is called?

Prides

Name the largest primate animal of the world.

The Gorilla

In which only continent the giraffes live?

Africa

Bamboo is the diet of which animal?

Giant Panda

Dolphin is an amphibian or a mammal?

A Mammal

Which object of the body produces red blood cells?

Bone Marrow

WBC’s stand for?

White Blood Cells

K is the symbol of which element?

Potassium

Which animal can store water in its body?

Camel

Name the process by which molecules of a solvent tend to pass through a semi-permeable membrane from a less concentrated solution into a more concentrated one.

Osmosis

Name the force which helps in remaining at the ground.

Gravity

How many poles a magnet has?

2

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