#1
What is the chemical symbol for gold?
#2
Which planet is known as the Red Planet?
#3
What is the process by which plants make their food?
#4
Which gas is most abundant in Earth's atmosphere?
#5
What is the SI unit of frequency?
#6
Which gas is responsible for the greenhouse effect?
#7
What is the smallest bone in the human body?
#8
Which scientist is known for his theory of general relativity?
#9
Which of the following is NOT a primary color of light?
#10
What is the chemical symbol for potassium?
#11
What is the chemical formula for water?
#12
Who developed the theory of relativity?
#13
What is the unit of electric current?
#14
Who proposed the theory of evolution by natural selection?
#15
What is the chemical formula for table salt?
#16
Who discovered penicillin?
#17
What is the chemical formula for methane?
#18
Who discovered the neutron?
#19
What is the formula for the area of a circle?
#20
Who discovered the double helix structure of DNA?
#21
What is the atomic number of carbon?
#22
What is the chemical symbol for iron?
#23
What is the speed of light in a vacuum?
#24
What is the chemical symbol for silver?
#25