Test Your Science Knowledge!
Let's see what you got, science grasshopper!
Approximately what proportion of the Earth is covered by water?
Almost 97% of all water on the Earth's surface is contained in the oceans.
50%
60%
70%
80%
True or False: The speed of light is faster than the speed of sound.
Sound speed (in air): 761 mph
Light speed: 670,616,629 mph
Light speed: 670,616,629 mph
True
False
What color is octopus blood?
Human blood is rich in iron, contained in the center of a protein called "hemoglobin". Hemoglobin is primarily responsible for the transport of oxygen. When oxygen binds to hemoglobin, the iron in the center becomes oxidized, making blood appear red.
Octopus blood is rich in copper, contained in the center of a protein called "hemocyanin". When oxygen binds to hemocyanin, the copper in the center becomes oxidized, making octopus blood appear blue.
Octopus blood is rich in copper, contained in the center of a protein called "hemocyanin". When oxygen binds to hemocyanin, the copper in the center becomes oxidized, making octopus blood appear blue.
Red
Blue
Purple
Clear
Which gas is most abundant in Earth's atmosphere?
Nitrogen makes up approximately 78% of the Earth's atmosphere! The next most abundant gas is oxygen, which constitutes approximately 21%.
Oxygen
Carbon Dioxide
Nitrogen
Argon
If you dropped a feather and a bowling ball on the moon, at the same time, which would land first?
Because there is essentially no atmosphere on the moon, neither the feather nor the bowling ball would encounter air-resistance when dropped. So, both experience the same acceleration due to gravity. As such, they both fall at the same time!
Bowling ball
Feather
Both land at the same time
True or False: The Earth's inner core is solid.
The inner core of the earth is solid iron and nickel. The outer core is a liquid iron and nickel. These two states of metal, and their dynamic interaction, help generate the Earth's magnetosphere.
True
False
What is the primary source of the oxygen in Earth's atmosphere?
Contrary to popular belief, terrestrial plant life (i.e., rainforests), only contribute about 1/3 of the oxygen we breathe. Phytoplankton are microscopic photosynthetic organisms that live in the oceans, and their combined output contributes about 50% of our oxygen!
Trees
Geological activity
Phytoplankton
What is the photoreceptor called that allows humans to see color?
The retina, located in the back of the eyeball, is embedded with photoreceptors called "rods" and "cones". Cones are responsible for the detection of color; rods are highly sensitive to light, and help us see in dimly-lit conditions.
Retinas
Rods
Cones
Photons
How many bones are in the adult human body?
Fun fact: human beings are born with 270 bones! As the infant ages, many of these bones fuse together and increase structural integrity in certain parts of the body. Eventually, adult humans end up with 206-213 individual bones.
148
206
139
214
What are the names of the moons which orbit Mars?
Deimos and Phobos are the awkward moons of Mars! Both are unusually shaped and lumpy in appearance. Every year, Phobos orbits closer and closer to Mars, with a trajectory which eventually hit the Martian soil. Bye, Phobos! :(
Deimos and Phobos
Titan and Enceladus
Olympus and Makemake
Ceres and Eris
You got {number correct}/{number of questions} correct answers
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You're a Young Scientist! You're on the come-up... but still probably drafting grant applications for your Principal Investigator...
You got {number correct}/{number of questions} correct answers
You are a Legendary Scientist! Let us know when you accept that Nobel Prize!
