Oxygen makes up what % of the atmosphere?

• 21

• 78

• 0.004

• 1

Which metal is used to build aircrafts due to its low density?

• Iron

• Zinc

• Titanium

• Aluminium

Which type of pathogen is the smallest?

• Bacteria

• Virus

• Fungi

• Protist

What is the hardest naturally occurring material?

• Diamond

• Spider Silk

• Gold

• Quartz

Which element is the most abundant in the human body?

• Oxygen

• Nitrogen

• Carbon

• Hydrogen

Which scientist invented dynamite?

• Albert Einstein

• Nikolai Tesla

• Alfred Nobel

• Marie Curie

Which oath of ethics taken by doctors is named after an Ancient Greek physician?

• The Socratic Oath

• The Hippocratic Oath

• The Galenic Oath

• The Asclepian Oath

What is the heaviest organ in the human body?

• Brain

• Heart

• Liver

• Skin

What is the only rock that floats?

• Granite

• Pumice

• Basalt

• Limestone

Which freezes faster, hot water or cold water?

• Hot water

• Cold Water

• They freeze at the same time

• It depends on the container