TABLE QUIZ
CHALLENGE
ROUND 1
Q 1: FOOD PRODUCTION
Only 11% of the
Earth’s surface is
used to grow food.
What % is not used?
Q 2: WATER
70% of the
Earth’s surface
is covered in
water.
What % is not?
Q 3: ICE
10% of the
Earth’s surface
is covered in ice.
What % is not?
Q 4: AIR
The Earth’s air
has 78% nitrogen
and 21% oxygen.
What % is left
for other gases?
Q 5: TEMPERATURE
The temperature of
the Earth’s interior
increases by 1 degree
every 18m down.
What is the temperature 180m down if
it is 10 degrees C at ground level?
Q 6: LIGHT
The Sun is
150,000,000km from
Earth. Light travels at
300,000km per second.
How many minutes does light take
to reach Earth from the Sun?
Q 7: DESERTS
One fifth of the
land on Earth is
covered by
desert.
What percentage of the land on the
Earth is not covered by desert?
Q 8: ORBIT
The Earth doesn’t
take 365 days to
orbit the sun. It
takes 365 days, 5
hours & 48 minutes.
What do we call the year that makes
up for this extra 5 hrs & 48 mins which
happens every four years?
Q 9: ORBIT
The Earth revolves
about its own axis
which gives us day and
night.
How many hours (approx.) does it
take to revolve on its own axis?
Q 10: SIZE COMPARISON
Q 10: SIZE
COMPARISON
The diameter of the sun is
1,392,000 km
The diameter of the Earth is 110 times smaller
What is the diameter of
the Earth?
END ROUND 1
PLEASE CHECK YOUR
ANSWERS
The 11 Times Trick
We all know the trick when
multiplying by ten – add 0 to the
end of the number, but did you
know there is an equally easy
trick for multiplying a two digit
number by 11?
Take the original number and imagine a
space between the two digits (in this
example we will use 52:
5_2
Now add the two numbers together and
put them in the middle:
5_(5+2)_2
That is it – you have the answer: 572.
52 x 11 = 572
If the numbers in the middle add up to
a 2 digit number, just insert the second
number and add 1 to the first:
So 99 x 11=
9_(9+9)_9
(9+1)_8_9
10_8_9
1089 – It works every time.
ANSWERS FROM
ROUND 1
Q 1: FOOD
PRODUCTION
Only 11% of the
Earth’s surface is
used to grow food.
What % is not used?
100% - 11% = 89%
Q 2: WATER
70% of the
Earth’s surface
is covered in
water.
What % is not?
100% - 70% = 30%
Q 3: ICE
10% of the
Earth’s surface
is covered in ice.
What % is not?
100% - 10% = 90%
Q 4: AIR
The Earth’s air
has 78% nitrogen
and 21% oxygen.
What % is left for
other gases?
78% + 21% = 99%
leaves 1%
Q 5:
TEMPERATURE
The temperature of the
Earth’s interior
increases by 1 degree
every 18 m down.
What is the temperature 180m down if it is 10
degrees C at ground level?
180m ÷ 18m = 10. 10 degrees + 10 =
20 degrees
Q 6: LIGHT
The Sun is
150,000,000km from
Earth. Light travels at
300,000km per second.
How many minutes does light take to reach Earth
from the Sun? 150,000,000 ÷ 300, 000 = 500 seconds
÷ 60 =
8 mins
Q 7: DESERTS
One fifth of the
land on Earth is
covered by
desert.
What percentage of the land on the Earth is not
covered by desert?
One fifth = 20%. So 80% is not covered by
desert.
Q 8: ORBIT
The Earth doesn’t take
365 days to orbit the
sun. It takes 365 days, 5
hours & 48 minutes.
What do we call the year that makes up for
this extra 5 hrs & 48 mins which happens
every four years? A LEAP YEAR
Q 9: ORBIT
The Earth revolves
about its own axis
which gives us day and
night.
How many hours (approx.) does it
take to revolve on its own axis?
24 hours
Q 10: SIZE
COMPARISON
Q 10: SIZE
COMPARISON
The diameter of the sun is 1,392,000
km. The diameter of the Earth is 110
times smaller.
What is the diameter of
the Earth? 1,392,000km ÷
110 = 12,654km
ROUND 2
Q 11: SATELLITES
The Earth has 1 moon
and 2 co-orbital
satellites:
2002 AA29 (60 metres
across) and 3753
Cruithne.
TRUE or
FALSE?
Q 12: POSITION
The Earth is the
THIRD planet
closest to the
sun.
TRUE or
FALSE?
Q 13: SHAPE
What
shape is
the Earth?
Q 14: SIZE
What is the
approx.
circumference
of the Earth:
4,000km
40,000km
400,000km
Q 15: POSITION
Standing still
on the equator
you are moving
at 1600km per
hour ….
TRUE or
FALSE?
Q 16: AGE
Earth is
about 4.54
billion
years old.
Write this number in
digits only!
Q 17: WORLD
RECORDS!
The lowest temperature
recorded on Earth came from
Russia’s Vostok Station at
minus 89.2 degrees Celsius
on 21, July 1983. The
temperature in Bunclody was
20 degrees Celsius.
How many degrees lower was the temperature
in the Antarctic than Bunclody on that day?
Q 18: WATER
The Antarctic ice
cap contains about
70% of the Earth’s
fresh water.
What % is found in rivers and
lakes all over the world?
Q 19: UP HIGH
The tallest mountain
is Mt. Everest at
8848m high. The Burj
Khalifa is 828m tall.
Approx. how many times taller is
Mt Everest than the Burj
Khalifa?
Q 20: HIDDEN
MOUNTAINS
The longest mountain
range is the Andes
(7000km). The longest
range below sea level is
called the Mid-Ocean
Ridge. It is over 9 times
longer.
Approx. how long is the
Mid-Ocean Ridge?
END ROUND 2
PLEASE CHECK YOUR
ANSWERS
If you need to square a 2 digit
number ending in 5, you can do so
very easily with this trick.
Mulitply the first digit by itself + 1,
and put 25 on the end. That is all!
252 = 25 x 25 = (2x(2+1)) & 25
2 x 3 = 6
625
The same can be done for decimals:
2.5 x 2.5 =
(2x(2+1)) & .25 =
6.25
6.5 x 6.5 = 6 x 7 + .25
= 42.25
8.5 x 8.5 = 72 + .25 = 72.25
ANSWERS FROM
ROUND 2
Q 11: SATELLITES
The Earth has 1 moon
and 2 co-orbital
satellites:
2002 AA29 (60 metres
across) and 3753
Cruithne.
TRUE
Q 12: POSITION
The Earth is the
THIRD planet
closest to the
sun. TRUE
Mercury Venus Earth
Mars Jupiter Saturn
Uranus Neptune Pluto
My Very Easy MethodJust Set Up Nine Planets
Q 13: SHAPE
What
shape is
the Earth?
SPHERE
Q 14: SIZE
What is the
approx.
circumference of
the Earth:
4,000km
40,000km
400,000km
Q 15: POSITION
Standing still on the
equator you are
moving at 1600km
per hour ….
TRUE
Q 16: AGE
Earth is
about 4.54
billion years
old.
4,540,000,000
Q 17: WORLD
RECORDS!
The lowest temperature
recorded on Earth came from
Russia’s Vostok Station at
minus 89.2 degrees Celsius
on 21, July 1983. The
temperature in Bunclody was
20 degrees Celsius.
How many degrees lower was the temperature in the
Antarctic than Bunclody on that day? 89.2 + 20 =
109.2 degrees
Q 18: WATER
The Antarctic ice
cap contains about
70% of the Earth’s
fresh water.
What % is found in rivers and lakes all
over the world? 100% - 70% = 30%
Q 19: UP HIGH
The tallest mountain is
Mt. Everest at 8848m
high. The Burj Khalifa is
828m tall.
Approx. how many times
taller is Mt Everest than
the Burj Khalifa? 10 times
Q 20: HIDDEN
MOUNTAINS
The longest mountain
range is the Andes
(7000km). The longest
range below sea level is
called the Mid-Ocean
Ridge. It is over 9 times
longer.
Approx. how long is the Mid-Ocean
Ridge? 7000km × 9 = 63,000km
ROUND 3 –
PENULTIMATE
ROUND
Q 21: HIDDEN
MOUNTAINS
The deepest point on the
ocean floor is 11,035m
below sea level in the
Mariana Trench.
How many metres below the
surface of the sea would the
top of Mt Everest (8848m) be
if you could put it there?
Q 22: THUNDER &
LIGHTNING
Which
travels
faster?
Light or
Sound?
Q 23: COASTLINES
Coastlines cover
about 20% of
U.S. (not
including Alaska),
and are home to
more than 50% of
the U.S.
population
What % live away
from the coasts?
Q 24: BREATHING
GIANTS
The General
Sherman giant
sequoia is the
biggest tree 83.8
m tall. The
tallest tree is
Hyperion and is
31.9m taller.
How high is Hyperion?
Q 25: TINY
CREATURES
The Kitti's hognosed bat found
in southeast Asia
is only about 30
millimeters long
and weighs only 2
grams.
How many would fit on
a 30cm ruler?
Q 26: CROWDED
PLACES
Manila in the
Philippines is the
most densely
populated place
in the world with
43,000 people per
square km.
Dublin is 35 times less densely
populated. Approx how many people
live per km2
Q 27: OPEN
SPACES
Greenland is the
least densely
populated place
in the world with
0.14 people per
square km.
Australia has 2.9 persons per km2
Approx how many times more densely
populated is Australia than Greenland?
Q 28: DRY PLACES
The driest spot
on Earth is the
Atacama Desert
of Chile and
Peru.
In the centre of this desert how
many mm of rain have been recorded
in the last 50 years?
Q 29: SIZE
How many
planets in our
solar system
are bigger
than the
Earth?
Q 30: EARTH DAY
April 22, every
year is
celebrated as
Earth Day.
How many days
in 2013 were
gone before
Earth Day?
END ROUND 3
PLEASE CHECK
YOUR ANSWERS
Multiply by 5
Most people memorize the 5 times tables very easily, but
when you get in to larger numbers it gets more complex
– or does it? This trick is super easy.
Take any number, then divide it by 2 (in other words,
halve the number). If the result is whole, add a 0 at the
end. If it is not, ignore the remainder and add a 5 at the
end. It works every time:
2682 x 5 = (2682 / 2) & 5 or 0
2682 / 2 = 1341 (whole number so add 0)
13410
Let’s try another:
5887 x 5
2943.5 (fractional number (ignore remainder, add 5)
29435
ANSWERS FROM
ROUND 3
Q 21: HIDDEN
MOUNTAINS
The deepest point on the
ocean floor is 11,035m
below sea level in the
Mariana Trench.
How many metres below the surface of the sea
would the top of Mt Everest (8848m) be if you
could put it there?
11035m – 8848m = 2187m
Q 22: THUNDER &
LIGHTNING
Which travels
faster? Light or
Sound?
LIGHT
(300,000km/sec)
SOUND
(0.340km/sec)
Q 23: COASTLINES
Coastlines cover
about 20% of
U.S. (not
including Alaska),
and are home to
more than 50% of
the U.S.
population
What % live away from
the coasts? 50%
Q 24: BREATHING
GIANTS
The General
Sherman giant
sequoia is the
biggest tree 83.8 m
tall. The tallest tree
is Hyperion and is
31.9m taller.
How high is Hyperion? 83.8m + 31.9m = 115.7m
Q 25: TINY
CREATURES
The Kitti's hognosed bat found in
southeast Asia is
only about 30
millimeters long
and
weighs only 2 grams.
How many would fit on a 30cm
ruler? 30cm = 300mm ÷ 30mm = 10
Q 26: CROWDED
PLACES
Manila in the
Philippines is the
most densely
populated place
in the world with
43,000 people per
square km.
Dublin is 35 times less densely
populated. Approx how many
people live per km2
43,000 ÷ 35 = 1228
Q 27: OPEN
SPACES
Greenland is the
least densely
populated place
in the world with
0.14 people per
square km.
Australia has 2.9 persons per
km2 Approx how many times
more densely populated is
Australia than Greenland?
2.9 ÷ 0.14 = 20
Q 28: DRY PLACES
The driest spot
on Earth is the
Atacama Desert
of Chile and
Peru.
In the centre of this desert
how many mm of rain have
been recorded in the last
50 years? 0mm
Q 29: SIZE
How many
planets in our
solar system are
bigger than the
Earth? 4 (Jupiter,
Saturn, Uranus &
Neptune,)
Q 30: EARTH DAY
April 22, was
Earth Day.
How many days
in 2013 were
gone before
Earth Day?
31+28+31+21 =
111
ROUND 4 –
LAST ROUND
Q 31: CIRCUMFERENCES
The Earth's
equatorial
circumference
(40,075 km) is
greater than its
polar
circumference
(40,008 km.
How many metres longer is
the equatorial
circumference?
Q 32: HIGHEST & LOWEST
The highest
recorded
temperature on
Earth is 58°C in Libya
in 1922, the lowest
recorded
temperature -89.6°C
in Antarctica in
1983.
How many degrees C
difference between the
high and low?
Q 33: SATELLITES
38,000 man-made
objects have orbited
the Earth since the
launch of Sputnik in
1957.
On average, approx. how
many for each year since
1957.
Q 34: LIGHTNING
How often does
lightning strike the
Earth each day?
860
8,600
86,000
860,000
8,600,000
Q 35: BABIES
Approximately
259,200 babies are
born every day.
How many are born
every second?
Q 36: SPACE JUNK
NASA estimate that
on average how
many pieces of
space junk fall to
Earth each day?
1
10
100
Q 37: SHARKS
How many
sharks are killed
by humans?
100
1,000
100,000
1,000,000
10,000,000
About 10 humans are killed
100,000,000
by sharks each year.
Q 38: GOLD
99% of Earth’s
gold lies at its
core
TRUE or FALSE?
Q 39: SPACE STATION
Total cost of
the
International
Space Station
$150
$150 million
$150 billion
Q 40: SEASONS
Earth's axis of
rotation
being tilted
more than 23
degrees
causes the
seasons.
How many seasons
are there?
END ROUND 4
PLEASE CHECK YOUR
ANSWERS
If you have a large number to
multiply and one of the numbers
is even, you can easily subdivide
to get to the answer:
32 x 125, is the same as:
16 x 250 is the same as:
8 x 500 is the same as:
4 x 1000 = 4,000
ANSWERS FROM
ROUND 4
Q 31: CIRCUMFERENCES
The Earth's equatorial
circumference (40,075
km) is greater than its
polar circumference
(40,008 km.
How many metres longer is the equatorial
circumference? 40,075km – 40,008km = 67km
Q 32: HIGHEST & LOWEST
The highest recorded
temperature on Earth is
58°C in Libya in 1922, the
lowest recorded
temperature -89.6°C in
Antarctica in 1983.
How many degrees C difference
between the high and low? 58 + 89.6 =
147.6 degrees
Q 33: SATELLITES
38,000 man-made
objects have orbited
the Earth since the
launch of Sputnik in
1957.
On average, approx. how many for each year
since 1957. 2013 – 1957 = 56 years. 38000 ÷ 56
= 679 objects
Q 34: LIGHTNING
How often does
lightning strike the
Earth each day?
860
8,600
86,000
860,000
8,600,000
Q 35: BABIES
Approximately
259,200 babies are
born every day.
How many are born every second?
259200 ÷ 24hrs ÷ 60mins ÷ 60sec = 3
Q 36: SPACE JUNK
NASA estimate that
on average how
many pieces of
space junk fall to
Earth each day?
1
10
100
Q 37: SHARKS
How many
sharks are killed
by humans?
100
1,000
100,000
1,000,000
10,000,000
About 10 humans are killed
100,000,000
by sharks each year.
Q 38: GOLD
99% of Earth’s
gold lies at its
core
TRUE
Q 39: SPACE STATION
Total cost of
the
International
Space Station
$150
$150 million
$150 billion
Q 40: SEASONS
Earth's axis of
rotation
being tilted
more than 23
degrees
causes the
seasons.
How many seasons
are there? 4
SOME FACTS
Antarctica has as
much ice as the
Atlantic Ocean has
water!
90% of rubbish in the
world’s oceans is
plastic
99% of the living
space on Earth is
represented by
oceans!
97% of water is
Salted
3% is Fresh
90% of all volcanic
activity occurs in the
oceans.