15 Questions • Science
What is the chemical symbol for hydrogen?
14 Questions • Science
Which machine powered the Industrial Revolution in the 18th century?
Who developed the theory of relativity?
17 Questions • Science
What is the approximate age of Earth?
24 Questions • Science
Which organ is responsible for producing insulin?
27 Questions • Science
What is the center of an atom called?
What was the name of the pandemic that swept through Europe in the 14th century, killing millions?
What is the name of the galaxy we live in?
Electrons are positively charged. True or false?
