Physics
Chemistry
Biology
Computer Science
World Science Day
100

What force keeps planets in orbit around the sun?

Gravity

100

What is the chemical symbol for water?

H2O

100

What process allows plants to take in carbon dioxide and release oxygen in the presence of sunlight?

Photosynthesis

100

What does CPU stand for?

Central Processing Unit

100

On which date is World Science Day for Peace and Development celebrated each year?

November 10th

200

What is the unit of electrical resistance?

Ohm

200

What are the three main subatomic particles in an atom?

Protons, neutrons, electrons

200

What pigment gives plants their green colour and helps them capture sunlight?

Chlorophyll

200

What number system do computers use?

Binary 

200

Which organization established World Science Day for Peace and Development?

UNESCO

300

Who is known as the father of modern physics?

Albert Einstein

300

What type of chemical bond involves the sharing of electrons between atoms?

Covalent Bond

300

Which system in the body produces hormones?

Endocrine System

300

What does “USB” stand for?

Universal Serial Bus
300

Full meaning of UNESCO

United Nations Educational, Scientific and Cultural Organization

400

What is the speed of light in a vacuum (approximate, in m/s)?

3 x 108 m/s

400

When you mix an acid and a base in a reaction broadly termed as neutralisation, they form what two products?

Water and a salt

400
What is the full form of DNA? 

Deoxyribonucleic acid

400

What does HTTP stand for?

HyperText Transfer Protocol

400

Theme for 2025 World Science Day for Peace and Development?

"Trust, Transformation and Tomorrow: The science we need for 2050"

OR

"Shaping tomorrow through Science"

500

According to quantum mechanics, what principle states that you cannot simultaneously know a particle’s exact position and momentum?

Heisenberg's Uncertainty Principle

500

What law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its components?

Dalton's Law

500

In eukaryotic cells, what organelle is responsible for breaking down old cell parts, bacteria, and waste material?

Lysosome.

500

Who is known as the father of computer science?

Alan Turing

500

In which year was the World Science Day for Peace and Development first celebrated?

2002

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