70% of the planet consists of this compound. It is also sure to quench your thirst.
H2O/water
The largest planet in our Solar system
Jupiter
The name of the desert that covers much of northern Africa
Sahara
A fist-sized muscular organ that pumps blood throughout the body
Heart
A tool Death is often pictured using to harvest the souls of dead humans
A scythe
The chemical symbol for gold
Au
The galaxy the Earth is located in
The Milky way
The name of the longest river in the world
Nile
Number of bones in the human body
206
Favorite game of the Grim reaper
Chess
Chemical symbol for the gas that makes you laugh
He
The only natural satelite orbiting Earth
Moon
The biggest island in Africa
Madagascar
These are crucial components of the immune system, protecting the body against infection and disease
White blood cells
Average global life expectancy
72 years
The hardest natural substance found on Earth
Diamond
Name of the space mission that landed on the Moon
Apollo 11
This dormant volcano is the highest mountain in Africa
Mount Kilimanjaro
Largest organ of the human body
Skin
God of death in the Greek mythos
Thanatos
Process by which electric current is passed through a substance to effect a chemical change
Electrolysis
The approximate speed of light in km/s or miles/s if you're British
300 000 km/s or 186 000 M/s
City in which the 2010 football world cup final was played
Johannesburg
A small, almond-shaped part of the brain that is primarily used to regulate your emotions
Amygdala
This country has the highest life expectancy
Monaco