Unlock 3 Discovery and invention vocab

A man made river built for boats to travel along, or to take water where it is needed

something that blocks you so that movement or action is stopped or made more difficult

a large, usually tall machine used for lifting and moving heavy things

very important or necessary

to stop something from happening or to stop someone from doing something

to have the same behaviour or qualities as something else

causing a lot of disagreement or argument

made by humans, not in nature

sent or accessed by a computer or a similar machine

a piece of clothing covering all or most of the body that supports the body or a part of it, and is worn, for example, by people with injuries to help them to walk or by soldiers to help them carry heavy equipment