Space
How old is Earth?
a) 4.54 million years
b) 4.54 billion years
c) 4.54 trillion years
d) 4.54 quadrillion years
b) 4.54 billion years
Flamingoes are born with ____ feathers.
a) grey/white
b) pink/white
c) red/white
d) orange/white
a) grey/white
The iconic pink, orange, or red feathers appear as the birds consume food rich in natural pigments called carotenoids. These pigments are found in the blue-green algae, brine shrimp, and other crustaceans that make up their diet in the wild.
Your left lung ___.
a) is about 10% smaller than your right lung
b) is about 10% bigger than your right lung
c) is about the same size as your right lung
d) is bigger if you are left handed, and vice versa
a) is about 10% smaller than your right lung
The left lung is smaller to make room for the heart.
About ___ of the Earth's surface is covered by water.
a) 50%
b) 60%
c) 70%
d) 80%
c) 70%
The only letter that doesn’t appear in any American state name is ___.
a) Q
b) X
c) Y
d) Z
a) Q
There's an X in Texas, a Y in New York, a Z in Arizona, but no Q in any of the American states.
Which planet is the hottest in our solar system?
a) Mercury
b) Venus
c) Mars
d) Jupiter
b) Venus
Venus has a thick atmosphere made mostly of carbon dioxide. This prevents heat loss, insulating the planet and warming it up.
Mercury has only a very thin exosphere, so it's cooler than Venus, despite being closer to the Sun.
The oldest dog on record is ___ years old.
a) 9.5
b) 19.5
c) 29.5
d) 39.5
c) 29.5
Bluey: An Australian Cattle Dog from Australia, he is the oldest verified dog on record, living to be 29 years and 160 days old. He died in 1939.
Your mouth produces about ___ of saliva each day.
a) 2 cups
b) 4 cups
c) 6 cups
d) 8 cups
b) 4 cups
___ never spoils and can be eaten safely no matter how long you keep it.
a) honey
b) candy
c) cooking oil
d) hot dogs
a) honey
Honey is safe to eat indefinitely because its low moisture and high acidity prevent bacteria from growing.
Which is false?
a) There is a photo of a family on the Moon.
b) Bats are not blind.
c) You can't fold a piece of A4 paper more than 8 times.
d) Identical twins have the same fingerprints.
d) Identical twins have the same fingerprints.
What shape is Mars?
a) irregular shape
b) a hockey puck
c) a basketball
d) a rugby ball
d) a rugby ball
Which animal cannot swim?
a) elephants
b) tigers
c) bears
d) hippopotamus
d) hippopotamus
Hippopotamuses can run, walk underwater, hold their breath for ~5 mins, but they cannot truly "swim" in the traditional sense.
Laid end to end, an adult’s blood vessels could circle Earth’s equator ___ times.
a) 0.4
b) 4
c) 40
d) 400
b) 4
Ice cream is a ___.
a) solid
b) liquid
c) gas
d) all of the above (at the same time)
d) all of the above (at the same time)
Ice cream contains solid ice crystals and fat, liquid sugary water, and trapped air bubbles, giving it a semi-solid, scoopable texture that melts into a liquid.
The national animal of Scotland is a __.
a) dolphin
b) lion
c) dragon
d) unicorn
d) unicorn
Which planet can float on water?
a) Mercury
b) Venus
c) Saturn
d) Jupiter
c) Saturn
Saturn is a gas giant made mostly of hydrogen and helium, giving it an average density less than water.
Koalas hug trees ___.
a) to stay on the tree
b) to cool themselves down
c) to eat the leaves
d) to stay away from predators
b) to cool themselves down
Koalas hug trees to cool down in hot weather, using the tree trunk as a natural air conditioner because the bark is significantly cooler than the air, sometimes by several degrees, thanks to water drawn up from the roots.
You lose about ___ of skin cells every year.
a) 2kg
b) 4kg
c) 6kg
d) 8kg
b) 4kg
The Eiffel Tower can grow up to ___ taller in the summer due to the thermal expansion of the metal.
a) 5cm
b) 15cm
c) 25cm
d) 35cm
b) 15
There is/are ___ type(s) of bananas growing in the world.
a) 1
b) 10
c) 100
d) 1,000
d) 1,000
What is the average weight of a cloud equal to?
a) 100 elephants
b) 100 cows
c) 100 alligators
d) 100 cats
a) 100 elephants
An average cumulus cloud weighs around 1.1 million pounds (500,000 kg), equivalent to about 100 elephants, due to the sheer volume of water droplets and ice crystals suspended within its structure.
On record, a chicken once lived for ___ without its head.
a) 18 seconds
b) 18 minutes
c) 18 days
d) 18 months
d) 18 months
A chicken named Mike lived for 18 months after a botched beheading in 1945, surviving because most of his brain stem and neck veins were left, allowing him to breathe and get blood, and he was fed via an eyedropper before eventually dying of choking.
Scientists estimate that the nose can recognise ___ different scents!
a) a million
b) a billion
c) a trillion
d) a quadrillion
c) a trillion
A sneeze can travel at speeds of up to ___ per hour.
a) 1.6km
b) 16km
c) 160km
d) 1600km
c) 160km
According to Wikipedia, there have been about ___ flavors of Kit Kat chocolate bars produced in Japan since 2000.
a) 4
b) 40
c) 400
d) 4000
c) 400