Biology
Chemistry
Physics
Science
100

What is the largest organ in a human body?

skin

100

What is the only metal that is liquid at room temperature?

Mercury

100

What is the name of the force that pulls objects towards the center of the Earth?

Gravity

100

Which vitamin is produced when the skin is exposed to sunlight?

Vitamin D

200

How many bones are there in an adult human body?

206

200

What is the chemical name of baking soda?

Sodium hydrogen carbonate

200

What type of energy is associated with objects in motion?

Kinetic Energy

200

What is the term for animals that are active during the night?

Nocturnal

300

What is the name given to the Organisms that produce their own food?

Autotrophs

300

 What is the name of the element, with symbol 'Sb', that is used in flame retardants and semiconductors and is derived from the Latin ‘stibium’?

antimony

300

What type of Electromagnetic Radiation do we sense as Heat?

Infra-red

300

What is the name of the process by which plants release water vapor into the atmosphere?

Transpiration

400

What is the most abundant protein in the human body?

Collagen

400

Which orbital does the last electron occupy for the Mn2+ ion (25Mn)

d orbital

400

Which type of waves cannot be polarised?

sound waves

400

What is the only planet that spins clockwise on its axis?

Venus

500

 Other than the Brain, what major organ makes up the central nervous system?

Spinal cord

500

What is the color change when aqueous chloride ions are added to the solution of [Cu(H2O)6]2+ complex? (state initial and final colors)

from pale blue to yellow

500

What is the speed of light in free space equal to? Give the units.

3.00x108 m s-1

500

At which temperature are Celsius and Fahrenheit equal?

-40