chemistry
biology
physics
astronomy
anatomy
100

What is the chemical symbol for water?

H₂O

100

Which gas do plants absorb from the atmosphere for photosynthesis?

Carbon dioxide

100

What is the term for the amount of matter in an object?


Mass

100

What planet is known as the "Red Planet"?

Mars

100

Which organ in the human body is primarily responsible for pumping blood?

The heart

200

What is the name of the process by which a liquid changes into a gas?

Evaporation

200

What is the process by which plants make their food using sunlight?

Photosynthesis

200

Who is known as the father of modern physics?

Isaac  Newton

200

What is the largest planet in our solar system?

Jupiter

200

What is the largest organ in the human body?


 The skin

300

What is the most abundant gas in Earth's atmosphere?

Nitrogen (78%)

300

Who discovered penicillin?

Alexander Fleming

300

What is the fundamental particle that has a positive charge?


Proton

300

What is the smallest planet in our solar system?

Mercury

300

How many bones are there in the adult human body?


206

400

What is the chemical symbol for sodium?


Na

400

What is the basic unit of heredity in living organisms?

Gene

400

What is the fundamental particle that has a negative   charge?

electron

400

Which planet has the most moons in our solar system?


 Saturn

400

What is the name of the hormone produced by the pancreas to regulate blood sugar levels?


 Insulin

500

 Who is credited with developing the first periodic table of elements?


Dmitri Mendeleev

500

What is the name of the protein that carries oxygen in the blood?


Hemoglobin

500

What is the unit of electrical resistance?


Ohm (Ω)

500

What are the "Gas Giants" in our solar system?


Jupiter, Saturn, Uranus, and Neptune

500

Which organ in the human body is responsible for detoxifying harmful substances?

 


The liver

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