Unit 9
a large body of salt water
ocean
to swallow large amounts of food or drink
gulp
to look at
watch
an object that is long, hollow and often round
tube
to create for the first time
invent
to be in contact with another person or thing
touch
to frighten
scare
to study a subject very carefully
research
to draw plans about how something should be made
design
a ship that can travel underwater
submarine
to happen
occur
to injure
hurt
to use time doing a particular activity
spend
normal; without any special feature
regular
the way something feels when you touch it
texture
to make something
form
to shoot out liquid
squirt
to protect something from being damaged
preserve
a hole in something
opening
a long thing string
thread
an amount calculated by adding together several quantities and then dividing by the number of quantities
average
to become twisted together
tangle up
not able to be explained
mysterious
the act of moving from one position to another
movement
to make something move into something else
push into