1
all the people
everyone
no person
no one
one person
someone
the kind of water you find in the see
salt water
the kind of water you find in rivers and lakes
fresh water
to make something become hotter
heat
what people and animals breathe
air
a small, useful tool or machine
gadget
a person who works or studies in science
scientist
belonging to you
yours
belonging to us
ours
belonging to him
his
clothes that is used for making things like paper or clothes
material
a new idea or machine which has been made for the first time
invention
to copy something onto your computer from another computer or the Internet
download