EVERYDAY SCIENCE

Who is known for the discovery of X-rays?

A) Wilhelm Conrad Roentgen

B) Marie Curie

C) Ernest Rutherford

D) Robert Koch

What is the chemical symbol for potassium?

A) Cl

B) P

C) Cn

D) K

Which gas is commonly used in refrigeration and air conditioning?

A) Oxygen

B) Nitrogen

C) Freon (Chlorofluorocarbon)

D) Hydrogen

Who is known for the theory of relativity?

A) Isaac Newton

B) Albert Einstein

C) Galileo Galilei

D) Johannes Kepler

The lifespan of Red Blood Cell is __________ days?

A) 60

B) 120

C) 180

D) 240

Which gas is produced by burning fossil fuels and contributes to air pollution?

A) Oxygen

B) Nitrogen

C) Carbon Dioxide

D) Sulfur Dioxide

What is the chemical symbol for neon?

A) Ne

B) No

C) Nn

D) Ne

The density of water is?

A) 1 g/cm³

B) 5 g/cm³

C) 2 g/cm³

D) None of these

Radioactivity was discovered by________?

A) Kelvin

B) Thomson

C) Rutherford

D) Bacquerel

A Device which converts chemical energy into electrical energy is called?

A) Motor

B) Generator

C) Moving Coil Meter

D) Battery