Vocabulary

• as well as: Also; in addition to
• have to: Must do
• at least: As a minimum
• due to: Because of; owing to
• best known: Most widely or popularly recognized, famous, or familiar.
• such as: For example; like
• building sites: Areas of land where buildings are being constructed.
• look at: To use your eyes to focus on something
• in flight: Act of flying
• without a doubt: Certainly; definitely.
• based on: To use something as the foundation or starting point for something else.
• too heavy: Having excessive weight; difficult to lift or move.
• care of: Used in an address to indicate the person who will receive the mail for someone else.
• break up
• on to: Toward something; forward
• go on: To continue doing something
• in reality: Actually; in fact; truly.
• off the ground: Having started or begun to operate or succeed.
• pause: To stop doing for a while before continuing
• memory: Ability of the mind to call back past things
• rise: To wake up and get out of bed after sleeping
• suggest: To mention something that could be done; propose
• flight: Act of leaving a place, usually to escape danger
• fill: To make something full
• fly: Common flying insect, sometimes blue in color
• invention: Something new that is different from other things
• design: To plan in a particular way to fulfill a purpose
• add: To include as well
• note: To notice or pay particular attention to something.
• machine: Piece of equipment used to do work
• test: To be given a medical examination
• childhood: The time when you are a child
• tail: Extended part at the back of an animal's body