GK - 4

What is the main gas found in the air we breathe?

• Oxygen

• Hydrogen

• Carbon Dioxide

• Nitrogen

Who invented the lightbulb?

• Nikola Tesla

• Alexander Graham Bell

• Benjamin Franklin

• Thomas Edison

What is the boiling point of water in Celsius?

• 0°C

• 50°C

• 100°C

• 120°C

Which part of the plant carries water from the roots to the leaves?

• Leaf

• Stem

• Root

• Flower

Which country is the largest by area?

• United States

• China

• Canada

• Russia

Who was the scientist that proposed the theory of gravity?

• Galileo Galilei

• Albert Einstein

• Isaac Newton

• Stephen Hawking

Which metal is liquid at room temperature?

• Iron

• Mercury

• Copper

• Zinc

What is the result of 2³ (2 to the power of 3)?

• 6

• 8

• 9

• 12

What is the largest internal organ in the human body?

• Heart

• Brain

• Liver

• Lungs

In what layer of the Earth do earthquakes occur?

• Inner core

• Mantle

• Crust

• Outer core