#1
What is the chemical symbol for gold?
Au
ExplanationGold's chemical symbol is Au.
#2
Which planet is known as the Red Planet?
Mars
ExplanationMars is known as the Red Planet.
#3
What is the process by which plants make their food?
Photosynthesis
ExplanationPlants make their food through photosynthesis.
#4
Which gas is most abundant in Earth's atmosphere?
Nitrogen
ExplanationNitrogen is the most abundant gas in Earth's atmosphere.
#5
What is the SI unit of frequency?
Hertz
ExplanationThe SI unit of frequency is Hertz.
#6
What is the chemical formula for water?
H2O
ExplanationWater's chemical formula is H2O.
#7
Who developed the theory of relativity?
Albert Einstein
ExplanationAlbert Einstein developed the theory of relativity.
#8
What is the unit of electric current?
Ampere
ExplanationThe unit of electric current is Ampere.
#9
Who proposed the theory of evolution by natural selection?
Charles Darwin
ExplanationCharles Darwin proposed the theory of evolution by natural selection.
#10
What is the chemical formula for table salt?
NaCl
ExplanationThe chemical formula for table salt is NaCl.
#11
What is the atomic number of carbon?
6
ExplanationThe atomic number of carbon is 6.
#12
What is the chemical symbol for iron?
Fe
ExplanationIron's chemical symbol is Fe.
#13
What is the speed of light in a vacuum?
299,792 kilometers per second
ExplanationThe speed of light in a vacuum is 299,792 kilometers per second.
#14
What is the chemical symbol for silver?
Ag
ExplanationSilver's chemical symbol is Ag.
#15
What is the chemical symbol for mercury?
Hg
ExplanationMercury's chemical symbol is Hg.