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15 Science Questions
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Question 1 of 15
What is the chemical symbol for potassium?
P
Pt
Po
K
Question 2 of 15
Which planet is known as the “Red Planet”?
Mars
Venus
Jupiter
Mercury
Question 3 of 15
What is the SI unit of electric current?
Watt
Ohm
Volt
Ampere
Question 4 of 15
What gas do plants absorb during photosynthesis?
Nitrogen
Helium
Carbon dioxide
Oxygen
Question 5 of 15
Which organelle is known as the powerhouse of the cell?
Ribosome
Mitochondria
Chloroplast
Nucleus
Question 6 of 15
What type of energy is stored in a stretched rubber band?
Thermal energy
Potential energy
Nuclear energy
Kinetic energy
Question 7 of 15
What is the chemical formula for table salt?
H2O
KCl
NaCl
CO2
Question 8 of 15
Which scientist proposed the theory of general relativity?
Isaac Newton
Albert Einstein
Niels Bohr
Galileo Galilei
Question 9 of 15
What is the boiling point of water at sea level in Celsius?
80
90
100
110
Question 10 of 15
What type of blood cells fight infections?
Red blood cells
White blood cells
Plasma
Platelets
Question 11 of 15
What is the most abundant gas in Earth’s atmosphere?
Nitrogen
Argon
Carbon dioxide
Oxygen
Question 12 of 15
What is the hardest natural substance on Earth?
Diamond
Obsidian
Quartz
Granite
Question 13 of 15
What type of celestial body is our Sun?
Star
Comet
Planet
Asteroid
Question 14 of 15
What is the process by which liquid turns into gas?
Sublimation
Freezing
Condensation
Evaporation
Question 15 of 15
What is the atomic number of oxygen?
10
6
12
8
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