What does “Hit the nail on the head” mean?
Be exactly right.
Agustín de Iturbide
Maximiliano de Habsburgo
What is climate change mainly caused by?
Greenhouse gases caused by human activity
What is the hardest natural material on Earth?
The diamond
What's the difference between a river and a lake?
A river flows; a lake is still water
What does “back up (a claim)” mean?
Provide evidence.
In what year did mankind first land on the Moon?
1969
What is the pH scale used for?
Measuring acidity/alkalinity
Mention one country that has territory in more than one continent.
Russia, Turkey, Egypt, Kazakhstan
What does the part in italics mean?
She got singled out for being too tall.
To choose one person or thing from a group for special attention, especially criticism or praise
What does the part in italics mean?
Sometimes you gotta stand your ground and bite the bullet.
Accept or perform something unpleasant, painful or difficult
Mention two reasons why the Roman Empire fell.
Invasions / internal weakness / economic problems
What's the difference between a virus and a bacteria?
Viruses need a host; bacteria can live independently.
What is the capital of Canada?
Ottawa
Who was the leader of the Aztec Empire during the beginning of the Spanish Conquest?
Moctezuma II
What does "too many cooks spoil the broth" mean?
Too many people trying to control something causes problems
Mention 5 of mankind's greatest inventions.
Language, the printing press, the wheel, agriculture, vaccines, steam engine, electricity, internet, penicillin, gunpowder, computer, telephone, airplane
What is the function of the mitochondria in cells?
Produce energy (ATP)
What is the "Pacific Ring of Fire"?
An area where most of the world's volcanoes are and most of the world's earthquakes happen.
What does the part in italics mean?
He cut corners to get the project done on time.
Do something badly to save time/money
What does “Burn bridges” mean?
Damage relationships permanently.
Who were the Axis leaders during WWII?
Adolf Hitler in Germany, Benito Mussolini in Italy and Emperor Hirohito in Japan
What is the difference between potential energy and kinetic energy?
Potential = stored; kinetic = energy of motion
Mention two of the top five countries with the most languages in the world
Papua New Guinea, Indonesia, Nigeria, India, United States
What is the role of enzymes in the human body?
They speed up chemical reactions