These are the most frequently used words in this book.
above
air
amount
animals
answer
area
beer
between
birds
body
bottle
bubbles
causes
cells
cent
changes
cloud
colour
come
contain
days
different
does
down
drink
during
earth
effect
energy
enough
even
eyes
few
find
first
food
form
found
get
glass
good
head
height
high
however
human
ice
kilometres
known
land
large
layer
leaves
less
level
light
liquid
long
material
may
metres
might
need
new
often
part
patterns
per
plants
point
pressure
process
produce
result
sea
second
see
should
side
skin
small
soil
sound
south
species
still
surface
take
temperature
time
two
type
uk
use
used
usually
water
wave
weight
years