a bear with white fur that lives in the Arctic
polar bear
all the people living in a particular country, area, or place
population
water that does not contain any salt, especially water found in lakes and rivers
fresh water
to jump into water, especially with your head and arms going in first, or to move down under the water
dive
having or producing a comfortably high temperature, although not hot
warm
a person in control of a group, country, or situation
leader
a person who works on a ship
sailor
to search a place and discover things about it
explore
the continent around the South Pole
Antarctica
extremely cold
icy
a condition giving a greater chance of success
advantage
condition or situation that causes problems, especially one that causes something or someone to be less successful than other things or people
disadvantage
a set of classes or a plan of study on a particular subject, usually leading to an exam or qualification
course
the activity or job of taking photographs or filming
photography
an expert who studies or works in one of the sciences
scientist
a place where something is, was, or will be built, or where something happened, is happening, or will happen
site
