Biology
What organ pumps blood around the human body?
The heart.
Which ancient civilization built the pyramids of Giza?
The Ancient Egyptians.
What is 12 × 8?
96
What is the largest continent by area?
Asia
What is the chemical symbol for oxygen?
O
What is the largest animal currently living on Earth?
The blue whale.
What pandemic killed millions of people in Europe during the 14th century?
The Black Death / Bubonic Plague.
What is 25% of 240?
60
What country has the shape of a boot?
Italy
What element has the chemical symbol Au
Gold
What part of a plant cell carries out photosynthesis?
The chloroplast.
Which explorer reached the Americas in 1492 while sailing for Spain?
Christopher Columbus
What is ¾ of 120?
90
What imaginary line divides Earth into the Northern and Southern Hemispheres?
The Equator
What are the three main subatomic particles that make up an atom?
Protons, neutrons, and electrons
What molecule carries genetic information in most living organisms?
DNA
In which country did the Industrial Revolution begin?
Great Britain / England.
Solve for x: 3x + 7 = 28
x = 7
What is the longest continental mountain range in the world?
The Andes
What is the chemical formula for table salt?
NaCl
What is the name of the tiny structures in the lungs where oxygen enters the blood and carbon dioxide leaves it?
Alveoli
Which treaty, signed in 1919, formally ended the state of war between Germany and the Allied Powers after World War I?
The Treaty of Versailles.
A shirt costs $80. Its price is reduced by 25% and then increased by 20%. What is its final price?
$72
Which country is completely surrounded by South Africa?
Lesotho
What gas is produced when an acid reacts with a carbonate?
Carbon dioxide (CO₂)